copyright © by holt, rinehart and winston. all rights reserved. resourceschapter menu to view the...

Copyright © by Holt, Rinehart and Winston. All rights reserved.

ResourcesChapter menu

• To View the presentation as a slideshow with effects open in Internet Explorer and click on “Slide Show” at the bottom right browser window.• •To advance through the presentation, left-click the mouse or the press the space bar.

• From the resources slide, click on any resource to see a presentation for that resource.

• From the Chapter menu screen click on any lesson to go directly to that lesson’s presentation.

• You may exit the slide show at any time by pressing the Esc key.

How to Use This Presentation



Monday August 24th Overview

• Seating Chart• Bellwork: Information Card• My Introduction to Class• Classroom Rules• Classroom Consequences• Discipline Writing Procedure• Materials for Class• How to Enter the Classroom

Procedure• Being Prepared for Class

Procedure• Heading on Every Paper

Procedure• Attendance Procedure• Tardy Procedure• Getting Class’ Attention Procedure

• Hall Pass Procedure• Pencil Sharpening Procedure• Asking a Question Procedure• End of Class Procedure• Homework Procedure: using

agenda to record assignments• Homework: Memorize Student

ID Number and bring $15 Lab money (Checks to Leon High School). Student photo on Wed.

• George Washington Carver• Red Tails Homework: $15 Lab Expense,

Notebook, Tabs, 2 pencils or pens, Memorize Student ID #

August 18th



Dr. George Washington Carver featured• Bellringer: Read the first page of the George Washington Carver

Story and answer these questions:– What is George Washington Carver Most Famous For?– In the Second Paragraph, What do you think happened to

George’s Mother?– What age was George when he started school?– Why didn’t George go work in the fields with the others?– What was George’s attitude about nature?

• Fascinating Facts• Tuskegee Institute founded by Booker T. Washington

– Faculty Member– Later Home of the Tuskegee Airmen 332 Fighter Group

known as the “Red Tails”



Tuesday August 25th Overview

• Bellringer: George Washington Carver Story Questions

• See Extra Credit Projects• Classwork: Getting to Know

You; Introduction of Neighbor• Lab Expense Collection• Reinforce Getting Class’

Attention Procedure• Introductions• Course SyllabusHomework: Get Lab Fee in and

Memorize Student ID, Sign last page of Syllabus, Join the List Serve, Label your notebook Tabs

• Appropriate email to teacher• My email address:

[email protected]

To be Covered Tomorrow • Signing on my List Serve• Set Up Notebook• See how to Access Integrated

Science Web Site• See Chapter Resources

available online• Frame Notes: Scientific Method

August 19th



Bellringer

Even before you started this course, you knew a lot about science because science and its effects surround everyone in our society. To help you tap this knowledge, answer the items below.

1. The term science encompasses many areas of study. Name four branches of science and briefly describe the topics that are studied in each.

2. Computer technology has changed the way many tasks are completed today. Name three other technological advances that have occurred since 1900 that have changed our lives significantly.

3. Scientific laws such as the law of gravity govern our daily lives. Name two additional laws of science that govern our lives.

Section 1 The Nature of ScienceChapter 1



Wednesday August 26th Overview

• Nature of Science Bellringer• Hall Pass• Miniature Earth Model related to USA’s science and technology

prowess • Lab Monies• 4th Hand in Medical Forms and Code of Conduct• Checking Notebook and Dividers

– Hand in Signed Syllabus Sheet• Gradebook Procedure• Begin Going Over the Science Fair Requirements• More IntroductionsHomework: Lab Monies, Notebook, Calculator, Labeled Tabs

August 20th



Chapter Presentation Bellringers

Transparencies Standardized Test Prep

Math Skills Visual Concepts

Resources



Integrated Science IIChapter 1: Introduction to Science

• Quiz Bowl Review• Chapter 1 Helps• English Text• Section 1• Section 2• Section 3• Spanish Intro Text• Spanish section 1• Spanish section 2• Spanish section 3



Bellringer

Your teacher has given you the following assignment: Investigate the impact on plant growth of adding various amounts of fertilizer to potted plants. Think about what you would need to do to be certain that the fertilizer was having the impact on the plant growth. Then answer the items below.

Section 2 The Way Science WorksChapter 1



Bellringer: Fertilizer Plan Part IWrite out the four items that would be part of your plan to investigate plant height and fertilizer. Do not write out the items that will not help you investigate this particular connection.a. _______ Put one plant in a sunny windowsill and one in a dark corner.b. _______ Give plants the same amounts of water.c. _______ Give different plants different amounts of fertilizer without keeping track of which plant got extra fertilizer.d. _______ Use some new plants from seeds and some old plants that have been growing for months.e. _______ Start with plants that are the same size.f. _______ Keep all plants in a similar location.g. _______ Carefully note amounts of fertilizer each plant is given.h. _______ Keep one plant fertilized but with no water.




Introduction to ScienceChapter 1

Table of Contents

Section 1 The Nature of Science

Section 2 The Way Science Works

Section 3 Organizing Data



Extra Credit Reports (You may do only one)

• Report on Dr. George Washington Carver Fascinating Facts

• Report on The Tuskegee Airmen 332 Fighter Group better known as the “Red Tails”

• Should Intelligent Design be taught as an alternative to Evolution

• Look up the definitions for Serendipity and Providence and Compare and Contrast their meanings and value to Science



Section 1 The Nature of Science

Objectives

• Describe the main branches of natural science and relate them to each other.

• Describe the relationship between science and technology.

• Distinguish between scientific laws and scientific theories.

• Explain the roles of models and mathematics in scientific theories and laws.

Chapter 1



Thursday August 27 th Overview

• Bellringer: Fertilizer Part I• BINGOO Read GWC Quotes• Lab Monies, Notebook, Tabs, Calculator, Pen or

Pencils• Continue Introductions• Homework: George Washington Carver Quotes• Late Homework: Lab Money, Syllabus Signature

Sheet– 4th Period also needs Emergency Form and

Code of Conduct Form

August 21



Homework: George Washington Carver Quotes

George Washington Carver Quotes1. Look at quote 1 and 12 and tell me in your own words how

George Washington Carver (GWC) feels about education2. Look at quote 3, 8,14 and 16 and tell me in your own words

what GWC feels are the keys to success and what causes most failures.

3. What type of mind is describe in quote 5 and what type of mind should we develop in quote 13 and why.

4. Look at quote 2 and 15 and tell me in your own words how George Washington Carver (GWC) feels about hate.

5. Look at quote 4, 6, and 11 and tell me in your own words how George Washington Carver (GWC) feels about God.

6. Pick your favorite quote and tell how it speaks to you.



Bellringer: Fertilizer Plan Part II

2. Name at least five tools or supplies you will need to perform this experiment.

3. What quantities will be measured, and what units will you use to record these measurements?

When Finished, Get out Book, Pencils, Notebook, Dividers, Agenda, and Hall Pass for Daily Grade. Begin looking at the Scavenger Hunt Page and fill it out as you can. Finally, be sure to read pps 1-11




Friday August 28th Overview

• Bellringer: Fertilizer Plan Part II• Frame Routine: Nature of Science



How Does Science Take Place?

• Scientists investigate.

• Scientists plan experiments.

• Scientists observe.

• Scientists always test the results.




How Does Science Take Place? continued

• Science has many branches.

• Biological science is the science of living things.• Physical science is the science of matter and

energy.• Earth science is the science of the Earth, the

atmosphere, and weather.

• Science is the knowledge obtained by observing natural events and conditions in order to discover facts and formulate laws or principles that can be verified or tested.




Natural Science




Biology




Physics




Earth Sciences




Monday August 31st Overview

• Bellringer: 5 Milestones of GWC – from the Dr. George Washington Carver Fascinating Facts

website– Look at all the milestones and pick 5 that stand out for you

and be able to tell why• Hand Out Books• Thieves today and tomorrow• Homework:

– Read Section 1 and Answers Odd Questions 1-9 on Page 11 in Complete Thoughts

– Late Homeworks: Lab Fees, Syllabus Sign Page, Finish Scavenger Hunt



The Element of Thieves

T=Title• What is the title of Chapter 1 on page 2?• What do I already know about the topic?• What do I think I will be reading about?H=Headings• What does the Green letter Heading on

pages 4, 12, and 20 tell me I will be reading about?

• How can I turn these Headings into questions that are likely to be answered in the text?

I=Introduction• Look at the Focus activity on page 3.

How does this page introduce the chapter?

• What do you think your grandparents would say was the scientific discovery that made the biggest difference in their lifetime?

E=Every first sentence in a paragraph• After reading the first sentence of each

paragraph of section 1 on pages 4-11, what do I think this first section will be about?

• If time permits I will read the first sentence of each paragraph in sections 2 and 3.

V=visuals and vocabulary• How do the photographs, drawings,

maps charts and graphs help me learn about this chapter?

• List the vocabulary words in the margins that you will need to know

E=end-of-chapter questions• While looking at the chapter review

questions from pages 27-29, list 7 things that are important in this chapter.

S=Summary• After I review the summaries on pages

11, 19, 26 what do I understand and recall about thie topic covered in the summary?



Tuesday September 1st Overview

• Bellringer: The House• Grade HW• Show Grades• Finish Notes on Section 1• Homework Answers Even Questions 2-8 on Page 11

in Complete Thoughts• Tomorrow Classes meet in the Band Field



How Does Science Take Place? continued

• Science and technology work together.

• Some scientists practice pure science defined as the continuing search for scientific knowledge.

• Some scientists and engineers practice applied science defined as the search for ways to use scientific knowledge for practical applications.

• Technology is the application of science for practical purposes.

• Link to Frame Routine Section 1 a Notes




Scientific Laws and Theories

• Laws and theories are supported by experimental results.

• Scientific theories are always being questioned and examined. To be valid, a theory must:

• explain observations• be repeatable• be predictable




Scientific Laws and Theories, continued

• Scientific law a summary of many experimental results and observations; a law tells how things work

• Scientific theory an explanation for some phenomenon that is based on observation, experimentation, and reasoning




Comparing Theories and Laws





• Mathematics can describe physical events.

• A qualitative statement describes something with words.

• A quantitative statement describes something with mathematical equations.





• Theories and laws are always being tested.

• Models can represent physical events.

• A model is a representation of an object or event that can be studied to understand the real object or event.

• Scientists use physical and computer models to study objects and events.




Models




Physical, Mathematical, and Conceptual Models


Link to Frame Routine Section 1 b Notes



Wednesday September 2nd Overview

• Pendulum Lab – Changing which variable give the most dramatic change in the Time it takes for the pendulum to return to its starting position after being released (called the Period)– Outcome: The Period (What we are interested in discovering)– Variables that we can change: String Length, Weight, or Drop

Height– Test Variable: The one variable from the above list of variables that

your group believes most affects the Period Time and you will change throughout the lab

– Control Variable: The two remaining variables that you will keep the same throughout the Experiment

• Check HW• Answers to SR p 11 Odd Questions Available online on the next slide



Thursday September 3rd Overview

• Bellringer: Complete Lab Notes from yesterday. Begin Lab Report

• Go over Section Reviews Answers• Complete Notes on Section 1• Homework: Finish Lab Report

– Be prepared for BINGOO on Section 1– Section 1 Quiz on Tuesday

• Online Source of the Lab Report Handout– In a Word Document (I am not sure if you can access it)

Click Here then click on the Lab Report with the Word Icon in front of it. Email me if you have any problems.

– As a Web Page



Answers to Section 1.1 Review Odd

1. Chemistry is the study of matter and its changes. Physics is the study of forces and energy and their interaction with matter.

3. A guess or opinion is usually an unsupported statement. A scientific theory is one that has been repeatedly tested through observations.

5. A law does not attempt to explain why something happens; a theory does

7. A model is used to study or make predictions about the object or situation the model represents. They are also used when an object or situation is too complex.

9. Answers will vary



Answers to Section 1.1 Review Even

2. Technology is the application of science. Improving technology involves someone finding a use for a scientific discovery. However some scientific discoveries cannot be made until the technology for making the necessary observations exist.

4. A scientific law states a repeated observation about nature.

6. Quantitative descriptions use numbers. Qualitative descriptions do not.

8. Instead of being disappointed Roetengen decided to experiment to find out more about his “failure.”



Friday September 4th Overview

• Bellringer: Prepare to Hand in your Pendulum Lab– 3 Hole punch paper– Staple Data Lab and Summary of Data page to Lab– Place Lab in Red Tray on top of Scanner

• 4th period Hand out passwords• Show effect of Lab and Quiz Grades

– If you make a 100 on both most you will have an A and some will have B’s for the class

– If everyone had a 40 on each, everyone would be failing– So be sure to study hard and do good.

• Play BINGOO Section Review Game• Homework: Study for Quiz which will be in the Media Computer

Lab



Tuesday September 8th Overview

• Login to the Computer– Call teacher over for assistance if you do not know login and

password• How to get to my website and how to get on the list serve• Find Shortcut to ‘Coon on Leon MS-10’ on the Desktop

– Click into it, Find the Test Folder and click into it– Click on ‘Ch1.1quiz.eot’

• Chapter 1.1 quiz – password ‘bingoo’

• Next do ‘Short Final Exam.eot’ password ‘final’• Google George Washington Carver or Roentgen for extra Credit report• http://chemistry2.csudh.edu/ptablegames/ptablegames.html

– Level I Game get it under 60 seconds before going to level II• Homework: Read Section1.2 pp12-19 and Answer questions 2-5, 7

p.19 in complete thoughts



Wednesday September 9th Overview

• Bellringer: Write the notes about KWL from the Whiteboard and here KWL: K=Know (if you think you know but are not sure write in pencil not pen); W= What Questions do you Have; L = What did you Learn after you read it.– Scan pages 12-15 in Green Book or Purple Book– Write a total of 10 things for the K and W sections before you read

section (Can be 5 K’s and 5 W’s or can be 3 K’s and 7 W’s or any combination)

– Read the pages, and write 10 things you learned from reading in the Learn Section,

• KWL and Begin Tonight’s Homework • Last Night’s Homework will be checked Tomorrow along with tonight’s• Homework: (Section 1 Quiz Retake on Friday)

– Section Review p. 19 #’s 1,6– Chapter Review p.27 #’s 4, 5, 9

• Begin Section 1.2 Notes



Units of Measurement

• SI units are used for consistency.• Scientists use the International System of Units (SI) to make

sharing data and results easier.




Thursday September 10th Overview

• Bellringer: Copy SI Base Units Table 1-1 p 16 (slide 47), and Common SI Units (slide 48)

• Review Homework• Scientific Method• King Henry Died bye Drinking Chocolate Milk• Even Number problems p 17 if time• Homework: Work the odd practice problems on page

17 And Read the Science Project Help Book



Answers to 1.2 Section Review

1. Things that are commonly measured by a. Mass: solid food items, people, and mail; b. Volume: liquid food items, gasoline, air flow (exhausts fans and a/c units); c. Length: rope, distance, height.

2. Scientific method is similar to critical thinking in that both involve thinking about a problem and checking details.

3. A hypothesis is a possible answer to a question that can be tested. An example: “I can pass the test if I study at least 5 hours.”

4. No experiment should be called a failure because an experiment that has unexpected results provides a chance to learn something new.

5. Even now, there are scientific theories which have not been verified. In some cases these theories cannot be tested because the tools do not yet exists.

6. An SI base unit is a single unit while a derived unit is a combination fo the base units. Base units include: seconds, meters, kilograms, kelvin, amperes, moles, and candelas. Examples of derived units are meters cubed (m3) or the newton (N), which is a kg*m/s2 .

7. It is much easier to determine which factor your experiment depends on if you only check one factor at a time. If you change more than one thing and something unexpected happens, you will not know what caused the result.



Scientific Method




Section 2 The Way Science Works

Objectives

• Understand how to use critical thinking skills to solve problems.

• Describe the steps of the scientific method.• Know some of the tools scientists use to investigate

nature.• Explain the objective of a consistent system of units,

and identify the SI units for length, mass, and time.• Identify what each common SI prefix represents, and

convert measurements.

Chapter 1



Units of Measurement, continued

• The table below shows SI prefixes for small measurements.





SI prefixes are for very large and very small measurements.

• The table below shows SI prefixes for large measurements.




Conversion Shortcut King Henry Died (Bye) Drinking Chocolate Milk

103 102 101 100 10-1 10-2 10-3

k h da d c m

1.6kg

5.1cA

550mm



Conversion Shortcut King Henry Died (Bye) Drinking Chocolate

103 102 101 100 10-1 10-2 10-3

k h da d c m

1.6 kg 16 hg

.51 dA 5.1 cA

550mm

Move one decimal to the right to get the box one place to the right

Move one decimal to the left to get the box one place to the left

The number of spaces you move is the amount you change the decimal



Math Conversions p 17

1. Write 550 millimeters as meters.

2. Write 3.5 seconds as milliseconds

3. Convert 1.6 kilograms to grams

4. Convert 2500 milligrams to kilograms

5. Convert 4.00 centimeters to micrometers

6. Change 2800 millimoles to moles

7. Change 6.1 amperes to milliamperes

8. Write 3 micrograms as nanograms.



Conversion ShortcutWrite in Bellringer Section

103 102 101 100 10-1 10-2 10-3

k h da d c m

550 mm

1.6 kg

6.1 amps



Conversion ShortcutWrite in Bellringer Section

103 102 101 100 10-1 10-2 10-3

k h da d c m

3.5 s

2500 mg

2800 mmol



Conversion ShortcutAnswers

103 102 101 100 10-1 10-2 10-3

k h da d c m

1.6 kg 16 hg 160 dag 1600 g 16000 dg160000

cg 1600000 mg

0.000051 kA 0.00051hA0.0051 daA

0.051 A 0.51 dA 5.1 cA 51 mA

550mm



Friday September 11th Overview

• Bellringer: Look at 1st page of Science Project Help Book– Put stars by the Topic Categories you find the most interesting

• How to exit a computer test – You must use the exit button– Raise your hand – Have teacher record your score

• Ch 1. Section 1 Retake password ‘xray’• Science Fair Packet read Frequently Asked Questions and Tips for

Completing Your Project• Possible Science Fair Questions• Sample Research Paper• Research Paper Outline• Discuss with your teacher what you would like to research and with his

approval, start to Google it.



Monday September 14th Overview

• Bellringer: Check your work to Practice on page 17 – be sure to include units1. 0.55 m2. 3500 ms3. 1600 g4. 0.0025 kg5. 40 000 μm6. 2.8 mol7. 6100 mA8. 3000 ng

• Lab Notes on Experiments • Be sure you understand how to

conduct an experiment• Brainstorm ideas on Science Fair

questions– Be ambitious (infrared bee

project)– No elementary school projects

• Research Lesson Wednesday in Media Center

• Homework: Have a science fair question ready for class tomorrow



Science Skills for Science Fair

• Critical Thinking

• Scientists approach a problem by thinking logically.

• Critical thinking is the ability and willingness to assess claims critically and to make judgments on the basis of objective and supported reasons.




Science Skills, continued

• Using the scientific method

• The scientific method is a general description of scientific thinking rather than an exact path for scientists to follow.

• Scientific method a series of steps followed to solve problems including collecting data, formulating a hypothesis, testing the hypothesis, and stating conclusions





• Hypothesis a possible explanation or answer that can be tested

• Testing hypotheses• Scientists test a hypothesis by doing a controlled

experiment.• In a controlled experiment, all the factors that

could affect the experiment are kept constant except for one change.

• Variable a factor that changes in an experiment in order to test a hypothesis




Hypothesis




Controlled Experiment and Variable




SI (Le Système Internationale d’Unités)





• Conducting experiments

• No experiment is a failure

• The results of every experiment can be used to revise the hypothesis or plan tests of a different variable.





• Using scientific tools

• There are many tools used by scientists for making observations, including

• Microscopes (light and electron)• Telescopes (light, radio, infrared) • spectroscopes• particle accelerators• computers




Math Skills

Conversions A roll of copper wire contains 15 m of wire. What is the length of the wire in centimeters?

1. List the given and unknown values.

Given: length in meters, l = 15 m

Unknown: length in centimeters = ? cm




Math Skills

2. Determine the relationship between units.Looking at the table of prefixes used for small

measurements, you can find that 1 cm = 0.01 m. This also means that 1 m = 100 cm.You will multiply because you are converting from a

larger unit (meters) to a smaller unit (centimeters)

3. Write the equation for the conversion.

length in cm = m


100 cm

1 m



Math Skills

4. Insert the known values into the equation, and solve.

length in cm = 15 m

length in cm = 1500 cm


100 cm

1 m



Bellringer: Interpreting and Graphing Fertilizer Data

Imagine your teacher asked you to study how providing different amounts of fertilizer affected the heights of plants. You perform a study and collect the data shown in the table below. Use this data to answer the items that follow.

Section 3 Organizing DataChapter 1



Bellringer, continued

1. Which amount of fertilizer produced the tallest plants?2. Which amount of fertilizer produced the smallest plants?3. Plot the data on a grid like the one below.4. Describe the overall trend as more fertilizer is added to the plants.





• Bellringer: Interpreting and Graphing Fertilizer Data• Classwork: KWL pp 20-26• Each Student is to discuss with teacher their Science

Fair Idea and be prepared to research topic tomorrow• Cherrydale Fundraising Opportunity• Homework:

– Read Section1.3 pp20-26 – SR p26 1-4




• Bellringer: Citing Resources• Login find the Media link on the Leon Website• Find the Resources link and use E-Library to discover

articles or books for your science fair projects.• Homework: Be sure you have a good Science Fair

question for research



Thursday September 17th Overview

• Bellringer: Scan pages 20 – top 26; : KWL: K=Know (if you think you know but are not sure write in pencil not pen); W= What you Want to Know; L = What did you Learn after you read it.– Write a total of 10 things for the K and W sections before

you read section– Read the pages, and write 10 most important things you

learned from the reading • Review Fertilizer Data Plot• Engineering Science Fair Option- Problem instead of Question

then Engineering Goal instead of Hypothesis• Math Skills using Block Diagram Method• Go over answers to 1.3 Section Review SR p26 1-4 • Homework

– SR p 26 #’s 5-7




• Making measurements• Many observations rely on quantitative

measurements.

• Length a measure of the straight-line distance between two points

• Volume a measure of the size of a body or region in three-dimensional space

• Mass a measure of the amount of matter in an object• Weight a measure of the gravitational force exerted

on an object




Volume




Friday September 18th Overview• Login to the Computer

– Call teacher over for assistance if you do not know login and password

• Click on and practice ch_1_section_2_review

• Check Homework next slide• Continue working with Ms.

David on Bibliographies – We need to have Four

Sources per person plus the International Science Fair Rules and Guidelines site

• Extra Credit Homework: Go to Challenger Learning Center for Free IMAX and Planetarium from 10 AM to 4 PM. Write a paragraph for each thing you see including demos

• If you have not taken the retake on Section 1 you may do so now– Open Ch1.1 retake.eot– Password ‘xray’

• Go to the Free Day at Challenger Learning Center from 10 AM to 4 PM and write a paragraph on each of your experiences (1 point for IMAX; 1 point for Planetarium; 1 Point for Demonstrations

• http://chemistry2.csudh.edu/ptablegames/ptablegames.html– Level I Game get it under 60

seconds before going to level II– Level II game get it under 100

seconds before going to level III



SR 1.3 p26 #’s1-4

1. Line graphs are best for continuous changes.2. Pie charts show the parts of a whole. An example is

the percentages of types of CD’s that make up a collection

3. Accuracy is how close a measurement is to being correct. Precision is how small the smallest unit of measurement is.

4. The correct answer is that both weigh the same. A reason for an incorrect answer might be that the batch of feathers would be much lighter than the same-sized piece of lead.



Monday September 21st Overview

• Correct Pendulum Lab for ½ credit• See Grades on Easy Grade Pro• Math using Block Diagram Method• BINGOO Review• Homework: Finish Lab Corrections and turn in

– Quiz on Ch 1 Section 2 tomorrow (last grade before progress reports)



Block Diagram Method

• Armando stepped on the scale in his doctor’s office and found out that his mass is 35 kg. What is his mass in grams?

• 35 000 g

35 kg

kg

g1000

1



Math Skills Sheet Conversions

12. 64 L/y = ? mL/month

64 times 1000 divided by 12

= 5,333 mL/mo

64 L

y L

mL1000

1

y

mo

1

12



1 Math Skills Sheet

• On March 24, 1989, the Exxon Valdez struck a reef in Prince William Sound, Alaska Spilling 37,854,120 L of crude oil. What is the volume in milliliters?



Math Skills Sheet Conversions 2-5

2. 30 883 kg = ? Mg

3. 90.76 s = ? ms 1000m = ? cm

4. 5 µg = ?g

5. 3000m = ?km



Math Skills Sheet Conversions 6-96. 20s = ?ks 100m = ?km

7. 100mA = ?A

8. 4301 m = ?km

9. 73 900 cm = ?m




11. The purpose of the sport called flight archery is to shoot an arrow the greatest possible distance. On of the greatest distance achieved was 624 m. What is the distance in centimeters?




14. 4046.9m2 = ?km2

• Hint: How many m2 = km2

• To figure out the hint, look at square inches from square feet• How many inches in a foot?

– 12• Then How many square inches in a square foot?

– 144 which is 12 squared• How many meters in a kilometer?

– 1000• How many square meters in a square kilometer?

– Now square the 1000 meters so there is 1 000 000 square meters in a square kilometer



Tricky when converting from Metric to English• How much is 25 cm in inches?• Conversion factor 2.54 cm = 1 in• Divide 25 by 2.54 = 9.84 in.

25 cm

cm

in 1

2.54



Tuesday September 22nd Overview


password• Take Ch 1 Section 2 Quiz password ‘nano’• If you have not taken Chapter 1.1 quiz or the 1.1 Retake you may do so

now– Ch 1 Section 1 Quiz password ‘bingoo’– Ch1 Section 1 retake.eot password ‘xray’

• When finished quiz, go to my website, click on Form 1A and Research Plan link (bottom right) and fill out as much as you know. Save it to you’re ‘My Documents’ folder

• Bernoulli’s Principal• Leaf Blower Lab• October Sky Movie during my absence with its Quiz on Tuesday• My Expectations for my Class with a Substitute Teacher



Plotting Data• Imagine your teacher asked you to

study how providing different amounts of fertilizer affected the heights of plants. You perform a study and collect the data shown in the table above. Use this data to answer the items that follow.

1. Which amount of fertilizer produced the tallest plants?

2. Which amount of fertilizer produced the smallest plants?

3. Plot the data on a grid like the one to the left.

4. Describe the overall trend as more fertilizer is added to the plants.



Wednesday – Monday Overview

September 23rd - 28th • Watch October Sky ( A movie with a Science Fair

Theme) and fill out the Movie Study Guide• Treat the Substitute Teacher with Respect• Friday Review answers after Movie• Monday continue Review• Be prepared for a Quiz or Test on October Sky Movie

Tuesday• Cherry Dale Fundraiser Due tomorrow • Homework: Continue to locate sources for your

Science Fair Research. Be ready to complete Bibliography on Tuesday in Computer Lab



Plotting Data• Imagine your teacher asked you

to study how providing different amounts of fertilizer affected the heights of plants. You perform a study and collect the data shown in the table above. Use this data to answer the items that follow.

1. Which amount of fertilizer produced the tallest plants?

2. Which amount of fertilizer produced the smallest plants?

3. Plot the data on a grid like the one to the left.

4. Describe the overall trend as more fertilizer is added to the plants.



Section 3 Organizing Data

Objectives

• Interpret line graphs, bar graphs, and pie charts.

• Use scientific notation and significant figures in problem solving.

• Identify the significant figures in calculations.

• Understand the difference between precision and accuracy.

Chapter 1





password• Go to the Test Folder inside of Coon on leon-ms10 folder and take the

October Sky Movie Test password ‘sputnik’• Continue working with Ms. David on Bibliographies

– If you finish today receive an extra 10 points – tomorrow 5 points– Due by Thursday – Friday minus 5 points– We need to have Four Sources per person plus the International

Science Fair Rules and Guidelines site• If you have not taken the retake on Section 1 you may do so now

– Open Ch1.1 retake.eot– Password ‘xray’

• http://chemistry2.csudh.edu/ptablegames/ptablegames.html– Level I Game get it under 60 seconds before going to level II– Level II game get it under 100 seconds before going to level III




• Bellringer : Making and Interpreting Bar and Pie Graphs

• Show Grades• Turn in CherryDale Fundraising Material• Practice p 23 Writing Scientific Notation (Extra

Practice)• Practice p 24 Using Scientific Notation• Practice p 25 Significant Figures (Extra Practice)• Homework:

– Complete the Study Guide 1.3 (on the backside of the Bar and Pie Graphs page)

– Turn in Bibliography on Science Fair Topic



Thursday October 1st Overview

• Bellringer: Making a Line Graph• Turn in your Science Fair Bibliography• All Fundraising Material in by Tuesday• Class Work: Deciding Which Type of Graph is

Appropriate• Correct Last night’s homework• Significant Figures• Homework: Practice p 25 #’s 1-4

Practice p 24 1,2Using Scientific Notation

1. Perform the following calculations.a. (5.5 x 104 cm) x (1.4 x 104 cm)b. (2.77 x 10-5 m) x (3.29 x 10-4 m)c. (4.34 g/mL) x (8.22 x 106 mL)d. (3.8 x 10-2 cm) x (4.4 x 10-2 cm) x (7.5 x 10-2 cm)

2. Perform the following calculations.

cm

cm

1010

2

38

5.9

2.5

35

5

/6.4

8.3

1010

cmkg

kg

s

L

62

0.3 104

36

7

1010

8.8

05.6

cm

g

a.

b.

c.

d.

Friday October 2nd Overview

• Bellringer: Practice p 24 1, 2• Hand in Bibliography for – 5• Classwork: Notes and Practice p 23• Homework: Get your Bibliography

in if you haven’t!!!

1 a-c Worked

a. (5.5 x 104 cm) x (1.4 x 104 cm) =(5.5 x 1.4) x (104 x 104) x (cm x cm) =7.7 x 104+4 cm2 = 7.7 x 108 cm2

b. (2.77 x 10-5 m) x (3.29 x 10-4 m) =(2.77 x 3.29) x (10-5 x 10-4) x (m x m) =9.1133 x 10-5+-4 m2 = 9.11 x 10-9 m2

c. (4.34 g/mL) x (8.22 x 106 mL) =(4.34 x 8.22) x (100 x 106) x (g/mL x mL) =35.6748 x (100+6) (g/mL x mL/1) =35.7 x 106 g = 3.57 x 107g



Practice p 24 Using Scientific Notation

1. Perform the following calculations.

a. (5.5 x 104 cm) x (1.4 x 104 cm)

= (5.5 x 1.4) x (104+4) x (cm x cm)

= 7.7 x 108 cm2

b. (2.77 x 10-5 m) x (3.29 x 10-4 m)

= (2.77 x 3.29) x (10-5+-4) x (m x m)

= 9.11 x 10-9 m2

c. (4.34 g/mL) x (8.22 x 106 mL)

= (4.34 x 8.22) x (100+6) x (g/mL x mL)

= 35.7 x 106 mL = 3.57 x 107 g

d. (3.8 x 10-2 cm) x (4.4 x 10-2 cm) x (7.5 x 10-2 cm)

2a, d from Practice

sL

sL

sL

s

L

s

L

s

L

/100.5

/105.0

/104838709.0

102.6

0.3

102.6

0.3

62

0.3

?

3

14

1

4

1

4

4

10

10

10

313

3

3

35

5

103.883.0

18260869.0

6.4

8.3

/6.4

8.3

1010

cmcm

kg

cmkg

cmkgkg

cmkg

kg



Practice p 24 Using Scientific Notation

2. Perform the following calculations.a. (3.0 x 104 L) ÷ 62s = (3.0 x 104 L) ÷ (6.2 x 101 s)

= (3.0 ÷ 6.2) x (104-1) x (L ÷ s) = 0.5 x 103 L/s= 5.0 x 102 L/s

b. (6.05 x 107 g ) ÷ (8.8 x 106 cm3) = (6.05 ÷ 8.8) x (107 ÷ 106 ) (g ÷ cm3) = 0.6875 x (107-6) g/cm3

= 0.69 x 101 g/cm3 = 6.9 g/cm3

– (5.2 x 108 cm3 ) ÷ (9.5 x 102 cm) = (5.2 ÷ 9.5) x (108-2) (cm3/cm) = 5.5 x 105 cm2



Scientific Notation




Writing Numbers in Scientific Notation

• Scientific notation is a method of expressing a quantity as a number multiplied by 10 to the appropriate power.

• Some powers of 10 and their decimal equivalents are shown to the right.

• Coon’s Rule: The power of 10 represents how far you move the decimal from its current position

– Positive powers move the decimal to the right

– Negative powers move the decimal to the left. The zero power doesn’t move the decimal at all.

• 103 = 1000 • 102 = 100• 101 = 10• 100 = 1• 10-1 = 0.1• 10-2 = 0.01• 10-3 = 0.001

• 3.5 x 103 = 3500• 3.5 x 10-3 = 0.0035




Practice p 23 1,2 Writing Scientific Notation

1. Write the following measurements in scientific notation:a. 800 000 000 mb. 0.0015 kgc. 60 200 Ld. 0.00 95 me. 8 002 000 kmf. 0.000 000 000 06 kg

2. Write the following measurements in long form:a. 4.5 x 103 gb. 6.05 x 10-3 mc. 3.115 x 106 kmd. 1.99 x 10-8 cm

= 4500 g= 0.00605 m

= 3 115 000 km= 0.0000000199 cm

= 8.0 x 108 m= 1.5 x 10-3 kg

= 6.02 x 104 L

= 9.5 x 10-3 m= 8.002 x 106 km

= 6.0 x 10-11 kg



Writing Numbers in Scientific Notation, continued• Using scientific notation

• When you use scientific notation in calculations, you follow the math rules for powers of 10.

• When you multiply two values in scientific notation, you add the powers of 10. When you divide, you subtract the powers of 10.

• Click on Slide Show on the Lower Left of Screen before proceeding to next slide


CR p27 # 13 Graph

0 1 3 4 5 6 7 8 9 102Time (min)

0

10

20

30

40

50

60

70

80

90

100Tem

pera

ture

(°C

)

11 12

a. What is the highest temperature reached during the reaction?

b. How many minutes passed before the highest temperature was reached?

c. During what period of time was the temperature increasing at a near steady rate?

d. Which occurred more slowly, heating or cooling?

Monday, October 5th Overview

• Bellringer: Answer Chapter Review Question # 13 p 27

• Precision vs. Accuracy Notes• Bibliography overdue• Homework: CR p 27 #’s 6-8, 12,

14, 15-17



Answers CR p 27 #13

a. Highest Temp reached at 69° C from book (or 70 ° C from slide)

b. 3 minutes passed till highest temp. reached

c. The first 3 minutes increased at near steady state

d. Cooling occurred more slowly



Significant Figures




Using Significant Figures

• Significant figure a prescribed decimal place that determines the amount of rounding off to be done based on the precision of the measurement

Precision and accuracy

• Precision the exactness of a measurement

• Accuracy a description of how close a measurement is to the true value of the quantity measured




Using Significant Figures, continued

• When you use measurements in calculations, the answer is only as precise as the least precise measurement used in the calculation.

• The measurement with the fewest significant figures determines the number of significant figures that can be used in the answer.




Accuracy and Precision, part 1




Accuracy and Precision, part 2




Accuracy and Precision




Presenting Scientific Data

• Line graphs are best for continuous change.

• Line graphs are usually made with the x-axis showing the independent variable and the y-axis showing the dependent variable.

• The values of the dependent variable depend on what happens in the experiment.

• The values of the independent variable are set before the experiment takes place.




Line Graph




Presenting Scientific Data, continued

• Bar graphs compare items.

• A bar graph is useful for comparing similar data for several individual items or events.

• A bar graph can make clearer how large or small the differences in individual values are.




Bar Graph




Presenting Scientific Data, continued

• Pie charts show parts of a whole.

• A pie chart is ideal for displaying data that are parts of a whole.

• Data in a pie chart is presented as a percent.




Math Skills

Writing Scientific Notation The adult human heart pumps about 18 000 L of blood each day. Write this value in scientific notation.


Given: volume, V = 18 000 L

Unknown: volume, V = ? x 10? L




Math Skills, continued

2. Write the form for scientific notation.V = ? x 10? L

3. Insert the known values into the form, and solve.First find the largest power of 10 that will divide into

the known value and leave one digit before the decimal point. You get 1.8 if you divide 10 000 into 18 000 L.

So, 18 000 L can be written as (1.8 x 10 000) L





Then write 10 000 as a power of 10. Because 10 000 = 104, you can write 18 000 L as

1.8 x 104 L.


V = 1.8 x 104 L



Math Skills

Using Scientific Notation Your state plans to buy a rectangular tract of land measuring 5.36 x 103 m by 1.38 x 104 m to establish a nature preserve. What is the area of this tract in square meters?


Given: length, l = 1.38 x 104 m

width, w = 5.36 x 103 m

Unknown: area, A = ? m2




Math Skills, continued2. Write the equation for area.

A = l w

3. Insert the known values into the equation, and solve.A = (1.38 104 m) (5.36 103 m)

Regroup the values and units as follows.

A = (1.38 5.36) (104 103) (m m)

When multiplying, add the powers of 10.

A = (1.38 5.35) (104+3) (m m)

A = 7.3968 107 m2

A = 7.40 107 m2




Math Skills

Significant Figures Calculate the volume of a room that is 3.125 m high, 4.25 m wide, and 5.75 m long. Write the answer with the correct number of significant figures.


Given: length, l = 5.75 m

width, w = 4.25 m

height, h = 3.125 m

Unknown: Volume, V = ? m3





2. Write the equation for volume.V = l w h

3. Insert the known values into the equation, and solve.V = 5.75 m 4.25 m 3.125 mV = 76.367 1875 m3

The answer should have three significant figures, because the value with the smallest number of significant figures has three significant figures.


V = 76.4 m3



SR 1.3 p 26 questions 5-7

5. Convert the following measurements to scientific notation: a. 15,400 mm3 = 1.54 x 104 mm3

b. 0.00033 kg = 3.3 x 10-4 kgc. 2050 mL = 2.05 x 103 mLd. 0.000015 mol = 1.5 x 10-5 mol

6. Calculate the following: a. 3.16x103 m x 2.91x104 m = 9.20 x 107 m2

b. 1.85x10-3 cm x 5.22x10-2cm = 9.66 x 10-5 cm2

c. 9.04x105g ÷ 1.35x105 cm3 = 6.70 g/cm3 7. Calculate the following, and round the answer to the correct

number of significant figures. a. 54.2cm2 x 22 cm = 1200 cm3

b. 23,500m ÷ 89s = 260 m/s



Answers toPractice p 23 1,2

1. Write the following measurements in scientific notation:a. 800 000 000 m = 8.0 x 108 mb. 0.0015 kg = 1.5 x 10-3 kgc. 60 200 L = 6.02 x 104 Ld. 0.00 95 m = 9.5 x 10-3 me. 8 002 000 km = 8.002 x 106 kmf. 0.000 000 000 06 kg = 6.0 x 10-11 kg

2. Write the following measurements in long form:a. 4.5 x 103 g = 4 500 gb. 6.05 x 10-3 m = 0.00605 mc. 3.115 x 106 km = 3 115 000 kmd. 1.99 x 10-8 cm = 0.000 000 0199 cm



Scientific Notation Shortcuts

• One shortcut involves numbers larger than 9. – Move the decimal point to the left and count the number of places it is

moved until you get only one number to the left of the decimal. – To change 18 000 to 1.8 in the previous example, the decimal point is

moved four places. The number of places the decimal is moved is the correct power of 10.

• 18 000 L = 1.8 x 104 L• The other shortcut is for numbers smaller than 1.

– When a quantity smaller than 1 is converted to scientific notation, the decimal moves to the right and the power of 10 is negative.

– Suppose an E. Coli bacterium is measured to be 0.000 0021 m long. To express this measurement in scientific notation, move the decimal point to the right six spaces

• 0.000 0021 m = 2.1 x 10-6 m



Tuesday, October 6th Overview

• Bellringer: Writing Scientific Notation / Using Scientific Notation• Go Over Homework Answers• BINGOO Review• Homework: Study for Section 1.3 Quiz tomorrow • End of the Fundraiser – Return the forms and money• Bibliography Rubric: 50 Points Total

– Heading an d Name(s) 5 points– Early/Late 10 points– Intel R & G site 5 points– Enough Sources 5 points– MLA Format 25 points



Wednesday October 7th Overview• Media Computer Lab• Login to the Computer

– Call teacher over for assistance if you do not know login and password

• Go to Coon on Leon MS 10 folder– Click on Tests Folder– Select Ch 1 Section 3 Quiz– Put in your name & Student

ID– Password is ‘data’– Minus 5 points if you need

the paper test• Correct your Bibliography and

resubmit it for full credit

• Find Leon High School Shortcut and open it– See your grades by clicking

on Online Grades– Login ID is your student ID

and the password was given to you by your 4th period teacher (come to me to get it if you don’t have it)

– See if you are missing any quizzes or the Bibliography

– Make up your work now• Chapter Test on Tuesday• Chapter Test Study Guide



Chapter 1: Review Sheet

• Section 1: Describe the main branches of natural science and relate them to each other.

• Describe the relationship between science and technology.• Distinguish between scientific laws and scientific theories.• Explain the roles of models and mathematics in scientific theories and

laws.• Section 2: Understand how to use critical thinking skills to solve problems.• Describe the steps of the scientific method.• Know some of the tools scientists use to investigate nature.• Explain the objective of a consistent system of units, and identify the SI units for

length, mass, and time.• Identify what each common SI prefix represents, and convert measurements.• Section 3: Interpret line graphs, bar graphs, and pie charts• Use scientific notation and significant figures in problem solving.• Identify the significant figures in calculations.• Understand the difference between precision and accuracy.



CR p 27 6,7,12,

6. The quantity 5.85 x 104 m is equivalent to ________a. 5 850 000 mb. 58 500 mc. 5 840 md. 0.000 585 m

7. Which of the following measurements has two significant figures?a. 0.003 55 gb. 500 mLc. 26.59 kmd. 2.3 cm



7. Which of the following measurements has two significant figures?

a. 0.003 55 g

b. 500 mL

c. 26.59 km

d. 2.3 cm



CR p28 15-17

15. Scientific Notation Write the following measurements in scientific notation:

a. 22 000 mgb. 0.005 kmc. 65 900 000 md. 0.000 003 7 kg

16. Scientific Notation Do the following calculations, and write the answers in scientific notation:

a. 37 000 000 x 7 100 000b. 0.000 312 ÷ 486c. 4.6 x 104 cm x 7.5 x 103 cmd. 8.3 x 104 kg ÷ 2.5 x 109 cm3

17. Significant Figures Do the following calculations, and write the answers with the correct number of significant figures:

a. 15.75 m x 8.45 mb. 5650 L ÷ 27 minc. 0.0058 km x 0.228 kmd. 6271 m ÷ 59.7 se. 3.5 x 103 x2.11 x 104



Scientific Notation Practice (Basic Skill 2.2)

1. Humans can hear sounds with frequencies up to 20 000 Hz, while dolphins can hear sounds as high as 150 000 Hz. Write these numbers in scientific notation.

2. In meteorology, 0.005 cm/h of precipitation is a mist, while 0.02 cm/h of precipitation is a drizzle. Write these numbers in scientific notation.

3. Express the area and average depth of the Pacific Ocean in scientific notation. The area is 166 000 000 km2, and the average depth is 4200 m.

4. Write 1.47 x 103 m/s, the speed of sound in water, in standard notation. 5. Write the diameter of an atom, 1x10-8 cm, in standard notation.



12.The volume of a bottle has been measured to be 485 mL. Use the terms significant figures, accuracy, and precision to explain what this tells you about the way volume was measured.



CR p27 8, 13, 148. The composition of the mixture of gases that makes up our air is best represented on what kind of

graph?a. Pie chartb. Bar graphc. Line graphd. Variable graph

13. Graphing The graph on the next slide shows the changes in temperature during a chemical reaction. Study the graph and answer the following questions:

a. What was the highest temperature reached during the reaction?b. How many minutes passed before the hightest temperature was reachedc. During What period of time was the termperature increasing at a steady rate?d. Which occurred more slowly, heating or cooling?

14. Graphing Silver solder is a mixture of 40% silver, 40% tin, 14% copper, and 6% zinc. Draw a graph that shows the composition of silver solder.



Dividing with Scientific Notation (Math Skills Sheet)

In order for an object such as a satellite to continue orbiting the earth, it must travel at least 7.8 x 103 m/s. Suppose an object was observed traveling 9.39 x 104 m in 1.20 x 102 s. Would the object continue to orbit or burn up reentering the atmosphere?

1. List the given and unknown valuesGiven: distance, d = 9.39 x 104 m

time, t = 1.20 x 102 s 2. Write the Equation for velocity.

v = d ÷ t3. Insert the known values into the equation and solve

v = (9.39 x 104 m) ÷ (1.20 x 102 s )Regroup the values and units as followsv = (9.39 ÷ 1.20)(104 ÷ 102)(m ÷ s)When dividing, subtract the powers of 10.v = (9.39 ÷ 1.20)(104-2)(m/s)v = 7.825 x 102 m/s (Is this rounded to the right number of significant figures?)

v = ?



Power of 10 Internet Link• Bellringer: As you watch each time the picture zooms

in 10X’s or zooms out 10X’s write three things you found the most surprising about the changes.

• This link examines the Powers of 10 as it takes us from deep in space down into the smallest part known of an atom

• http://micro.magnet.fsu.edu/primer/java/scienceopticsu/powersof10/



Designing Water Rocket Experiment

– Making Observations• What model rocket launches have you seen before?• How does the rocket get launched?• How and where are we going to set up the experiment?

– Asking Questions• How are we going to tell which rocket goes the highest?• What would happen to the test results if we varied the air pressure?

– Forming a Hypothesis, your guess as to how much water will give the highest launch– Testing Hypothesis

• Create a Data Table where you can organize your findings• How can you get close to the truth soon so the final launches can give the best

details to the question– Analyzing Results

• How will you tell how much water to put into each successive launch as you get close to highest

– Drawing Conclusions • How did the results compare with the hypothesis. • Why was the correct amount of water the best? • If a 2 Liter Bottle was used, what would be the best amount of water for that?

– Communicating Results – what will be the best way to get your results to the teacher?



Rocket Lab: Team Name: ___________ Period: ____ Rocket Mass _____ in gramsRocket & Stand ______ - Stand ____= Rocket Mass

Group Name or

Launch #

Pressure in Rocket

(psi)

Water in Rocket

(ml)

Time of Flight

sec. (s)

Protractor Angle

degrees. (°)

Observations



Team Assignment Sheet Date: _____ Period: ___

• Team Name: _____________________ • Team Leader: _____________________• Launch Director _____________________• Flight Director: _____________________• Data Officer: _____________________• Trajectory Officer: _____________________



Using Significant FiguresWrite in Note Section (Today’s Date) • Precision: the degree of exactness of a measurement• Sort these units of length from the least precise to the unit with the greatest precision.

– Centimeters– Kilometers– Megameters– Nanometers– Meters– Millimeters– Gigameters– Micrometers

• Which tape measure would be more precise, the one marked to decameters or the one marked to decimeters?

• Significant figures: the digits in a measurement that are known with certainty• Hint: Zero’s are only significant if they are sandwiched between other numbers

– Do 3 and then 4a. from handout• Accuracy: the extent to which a measurement approaches the true value• What if the decimeter tape had about 0.5 meters torn off. Which would suffer, its precision or its

accuracy?



Significant Figures Practice

1. Round 578.683 m, 47.3333 kg, and 789.5 cm to four significant figures. 2. Round 3155.24 m, 8.777 73 cm, and 93.755 57 kg to one less significant figure than

they each have currently. 3. Use the equation, A = l x w, to find the area of a rectangle that is 48.5 cm long and

3.77 cm wide. Round your answer to the correct number of significant figures. 4. Use the equation, weight = mass x free-fall acceleration, to find the weight of a

12.25 kg dog. Round your answer to the correct number of significant figures. 12.25 kg x 9.81 m/s2 =

5. Multiply 4.135 m x 4.688 888 887 m x 8.7 m. Round your answer to the correct number of significant figures.



Math Review Pages

• Scientific Notation Basic Skills• Basic Skills SI Units and Conversions• Basic Skills Converting Measurements



Practice SI Units and Conversions Between them

1. Convert 100 m, the length of a well-known track event, to kilometers.

2. Convert 5.98 x 1024 kg, the mass of Earth, to milligrams, mg.

3. If you reported how quickly energy was used, measuring energy in joules, J, and time in seconds, s, which unit would you use?

4. Convert a force of 4.448 N to units of g∙cm/s2. 5. Convert the gravitation constant of 6.67 x 10-11

N∙m2/kg2 to N∙km2/g2



Practice Converting Measurements1. In Canada, you pass a speed limit sign that says 75

km/h. How fast can you drive in mi/h? 2. How many liters of milk are in 3.5 gal? 3. How many meters long is a 100 yd football field?

(Note that 1 yd = 3 ft.)



More Math Review Sheets

• Math Skill Writing Scientific Notation• Math Skill Using Scientific Notation• Math Skill Significant Figures



Answers Chapter Review p. 27

• 1. d; 2. b; 3. a; 4. d; 5. c; 6. b; 7. d; 8. a; 9. c• 10. Chemistry once thought to only belong in the non

living world is now known to exist inside the living body

• 11. The sun sets repeatedly in the west and this statement does not try to attempt to say why so it is a law instead of a theory.

• 12. Since the measurement has been done to 3 significant figures it is known that the precision is to the milliliters. The accuracy is not known unless compared to a standard or calibrated.



Concept Mapping




Understanding Concepts, continued

3. What is a scientific theory?

A. A theory is a guess as to what will happen.

B. A theory is a summary of a scientific fact based on observations.

C. A theory is an explanation of how a process works based on observations.

D. A theory describes a process in nature that can be repeated by testing.

Standardized Test PrepChapter 1




4. When designing a new airplane, experienced pilots use computer simulations to determine how changes from previous designs affect the plane’s handling in flight. What is the advantage of computer simulation over actually building the plane and having pilots test it in actual flight situations?





4. When designing a new airplane, experienced pilots use computer simulations to determine how changes from previous designs affect the plane’s handling in flight. What is the advantage of computer simulation over actually building the plane and having pilots test it in actual flight situations?

Answer: The computer simulation provides a model of the new plane so that potential design problems can be corrected without risk to the pilots and without the expense of building an airplane that does not function well.




Reading Skills

Two thousand years ago Earth was believed to be unmoving and at the center of the universe. The moon, sun, each of the known planets, and all of the stars were believed to be located on the surfaces of rotating crystal spheres. Motion of the celestial objects could be predicted based on the complex movement of the spheres that had been determined using observations recorded over many years.

5. Demonstrate why this description of the universe was a useful model to ancient astronomers but not to present-day astronomers.




Reading Skills, continued

5. [See previous slide for question.]

Answer: It was useful because it could predict motions of objects in the sky.




Interpreting Graphics

6. What is the volume of the gas 40 seconds into the experiment?

A. 15 mL

B. 24 mL

C. 27 mL

D. 50 mL




Notebook – Syllabus First, Bellringer Tab

• Syllabus in Front• Bellringer Tab

– 8/20 Be Sure you turned in 5 by 8 information Card– 8/21 4 Sciences, 3 Technologies, 2 Laws– 8/22 George Washington Carver 3, 2, 1– 8/23 George Washington Carver Quotes– 8/24 Fertilizer Experiment Part 1– 8/27 Fertilizer Experiment Part 2– 8/28 KWL pp 12-15 Section 1.2– 8/29 SI Tables– 8/30 Even Problems p 17 Practice– 8/31 Conversion Shortcut / King Henry– 9/4 KWL pp 20-22– 9/5 Fertilizer vs. Height Graph



Notebook – Homework Tab

• Be sure Syllabus page is turned in, Lab Expense• 8/27 Section 1.1; SR p 11; Odd questions 1-9• 8/28 Section 1.2; SR p 19; #’s 2-5, 7• 8/29 Section 1.2; SR p 19 #’s 1, 6; CR p 27 # 4, 5, 9• 8/30 Practice Math Problems p 17 Odd questions• 9/4 SR p26 #’s 1-4• 9/5 SR p26 #’s 5-7



Notebook – Notes Tab

• Frame Routine 1.1 Nature of Science• Frame Routine 1.1 Nature of Science Continued• Frame Routine 1.2 The Way Science Works• Scientific Method Diagram Diagram• 9/4 Frame Routine 1.2 Units of Measure• 9/5 Frame Routine 1.3 Organizing Data

copyright © by holt, rinehart and winston. all rights reserved. resourceschapter menu to view the...

Documents

th slide

classroom procedure

presentation slide

nature of science chapter

class procedure heading

usas science

term science

branches of science