P H A S E 1 C H E C K L I S T

Student Name: _______________________ Group: _______

Your portfolio must include, the student agreement (signed) and the portfolio checklist

Act Description

Activity

PointsEarned Points

1Sign Agreement

2Diagnostic Activity

3Knowledge Acquisition (Reading 1-1) 2

4

Organization Activity “The Discovery of the penicillin”

25

5Reading and Workbook 1-2 2

6

Application Activity “Science and Society”

3

7Foldable 4

8Reading and Workbook 1-3 2

9Metacognition “The fields of Biology” 2

10Chapter 1 Assessment 5

11Integrative Activity 1 50

12Lab #1 Using a Compound Microscope 5

Total 100

STUDENT’S REFLECTIONS ABOUT HIS/HER WORK:

Presentation/Content/Activities________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Feedback to Teacher:_______________________________________________________________Students’ Signature____________________________________ Date:____________

P H A S E 1 A G R E E M E N T

I ______________________________________________________ understand that my

portfolio is a collection of my school work and related achievements. The

contents exhibit my effort and progress as these elements relate to the goals

represented in my instructional program.

I agree to accept the responsibility for creating and managing my portfolio as I

complete each requirement. I will submit its content for periodic review to my

instructor. In doing so, I understand that the contents of my portfolio, as well as

the way in which I have presented the contents, will be evaluated for the

purpose of judging my performance in school.

Student Signature: _______________________________ Date: ____________________

Parent Signature:

I have read and understand the above portfolio agreement and have reviewed

my child’s portfolio requirements.

________________________________ Date: ______________________

Stage 1: Biology as a Science

Diagnostic Activity1- Answer the following questions.a- What do you understand for science?

__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

b- What are the main characteristics of science?__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

c- What is the scientific method?____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

d- What are the characteristics of living things?____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

2- Comment with your classmates.

Knowledge Acquisition Activity1- Read your textbook on the following topics.- What is science?- Communicate the results.- Scientific theories

1-1 WHAT IS SCIENCE 1- Science is ________________________________________________________________________________________________________________________________________________2- The goal of science is to ______________________________ for events in the natural world. It also aims to use those ____________ to understand ______________ in nature and to make useful predictions about ____________________________.3. _____________________ involves observing and asking questions, making inferences and forming hypotheses, conducting controlled experiments, collecting and analyzing data, and, drawing conclusions.4. Scientific investigations begin with __________________ the act of noticing and describing events or processes in a carefully, orderly way.5. An ______________________ is a logical interpretation based on prior knowledge or experience. A ___________________ is a scientific explanation for a set of observations that can be tested.6. A controlled experiment is _______________________________________________________________________________________________________________________7. Variables are:- Independent variable- ______________________________________________________________________________________________________________________________________- Dependent Variable- _______________________________________________________________________________________________________________________________________

8. What are the two main categories of data? a)___________________________________________________________________________b) _____________________________________________________________________________

9. Some hypotheses are tested by performing _________________ _________________. Other hypotheses are tested by gathering more _________________.

10. To be valid, a conclusion must be based on _________________ interpretation of data.

HOMEWORK --- Answer Workbook 1-1

Organization Activity1- Read “The discovery of Penicillin” and write a report that includes the following:- Description of the application of the scientific method.- Personal Conclusions.

Discovery of Penicillin

The discovery of penicillin has been used as a clear example to show how the scientific method works, through the observation and the ability to interpret a casual phenomenon.

Alexander, Fleming, biologist, in 1928, while studying bacterial culture media, he noticed that accidentally, one of the petri dishes had been contaminated with a blue mould called Penicillium (microscopic fungi). At the beginning, Fleming was about to get rid of the petri dish, but as he observed that in the zone where the mould was, bacteria were not growing; he asked himself how the fungus affected bacterial growth.

Fleming, for his research, suggested that the fungus produces a substance that inhibits bacterial growth and predicted, if they were in contact, both bacterial and fungal cultures, then bacterial death would occur. In order to test it, and learn if he was right he cultured bacteria in different petri dishes. Then he separated the dishes in two groups and gave each a different treatment.

Group A: bacterial culture in contact with the fungus.

Group B: bacterial culture without the fungus.

For each petri dish, he observed and registered the presence of live or dead bacteria after the treatment. He got to kinds of results once he checked the growing of bacterial colonies (a bacterial colony is a group of thousands of bacteria that can be seen with the naked eye). The petri dished in group A showed a lower amount of colonies after being exposed to the fungi, particularly in the areas closer to the fungus. The dishes in group B showed normal growth. Fleming explained that the lower amount of colonies in group A was because the fungus secretes a substance that causes death to bacteria.

He concluded that as fungi and bacteria compete in nature for the same resources contained in organic matter, certain species as Penicillium had been able to synthesize a chemical that would get rid of bacteria. He called the substance, penicillin, because the fungus that produced it as Penicillium.

We now know that the researched developed by Fleming was the base to obtain a substance to destroy pathogenic bacteria that we call penicillin, one of the most important antibiotics in history. Surprisingly, it wasn´t until 10 years after Fleming´s findings that penicillin was used in a practical way.

Help yourself filling the following chart as you read the article.

Observation

Inference

Hypothesis

Variables- Independent

- Dependent

- Controlled

Procedure

Analysis of data

Conclusion

Rubric

Criteria 0FAIR

2.5GOOD

5EXCELLENT

Observations The observations were incorrect.

The observations were missing ideas.

The observations were accurate.

Hypothesis The hypothesis is incorrect.

The hypothesis had the idea but is missing information.

The hypothesis was correctly written.

Variables The variables are incorrect.

The variables were confused.

All of the variables were correct.

Describes all of the procedure.

The procedure is incorrect.

The procedure was missing information.

The procedure was described step by step.

Conclusion The conclusion is incorrect.

The conclusion was not complete.

The conclusion is accurately explained.

1.2 Science in Context

1. Scientific attitudes involve:a. ______________________________ c. _____________________________b. ______________________________ d. _____________________________

2. Ideas for scientific investigations arise from _______________________.

3. ______________________________, __________________________, and society are closely linked. Discoveries in one field of science may lead to new technologies.

4. Publishing ________________ -- _______________________ articles in scientific journals allows researchers to share ideas and to test and evaluate. Scientific articles contain details about experimental conditions, ________________, __________________, ______________________, and conclusions.

5. During peer review they look for oversights, unfair influence, _______________ or __________________ in techniques or reasoning.

6. A scientific theory is a ___________________________________________________________________________________________________________________________________________________________________________________________________________________________

7. Using science involves understanding its context in ________________ and its __________________.

8. Bias is a ______________________________________________________________________________________________________________________________________________________________________________________________________________________________________

9. Science will keep ________________ as long as humans keep ________________ about __________________.

HOMEWORK -- Answer Workbook 1-2

Application Activity1- Read from your textbook the topic Science and Society Pg. 14 and 15.2- Answer the following questions:- What are some of the limitations of science?

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

- What is the relationship between science and society?__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

- How is the use of science related to its context in society?

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

- Describe some of the limitations of science.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

- A study shows that a new pesticide is safe for use on food crops. The researcher who conducted the study works for the pesticide company. What potential biases may have affected the study?________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

- Give an example of an ethical or moral question that science cannot address.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

3- Research a historical example of how scientific advancement was impeded by the society in which a scientist lived. You might research on Galileo, Copernicus, Wegner or Darwin to find out how the acceptance of ideas was influenced by prevailing social beliefs and attitudes.

Galileo

Copernicus

Wegner

Darwin

4- Share your answers with the rest of your class. Make sure to write notes about what is said.

Objective- Review all of the characteristics of Living things.Instructions- Make a foldable on big ideas in Biology. Take 5 pieces (the example bellow uses only 3) of paper and arrange them with 5 cm of difference. Fold the papers in half making sure all of the front pieces are like a stair. Staple and get ready to work.

1-3 Studying Life...............................................................Name: ___________________________

1. What does the word biology mean? ___________________________________________________________________________

2. List the 8 characteristics of living things (see page 16):________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

3. Circle the letter of each sentence that is TRUE about cells.a. A cell is the smallest unit of an organism that is considered alive.b. A multicellular organism may contain trillions of cells.c. A living thing that consists of a single cell is a multicellular organism.d. Organisms are made up of cells.

4. A type of asexual reproduction where a portion of the organism splits off to form a new organism is called _____________________.

5. What is metabolism? _____________________________________________

6. Plants, some bacteria, and most algae obtain their energy directly from ___________.

7. A _______________ is a signal to which an organism responds.

8. Give 2 examples of external stimuli: _______________________________________.

9. The process by which organisms maintain constant internal conditions if referred to as _______________.

10. ___________________ is any change in a kind of organism over time.

(Some) BRANCHES OF BIOLOGY:

11. A biologist who studies animals is called a ____________________________.

12. A plant biologist is referred to as a _________________________________.

13. Someone who studies ancient life is a ________________________________.

14. The __________ __________ is a decimal system of measurement whose units are based on certain ______________ standards and multiples of _______________.

15. The meter is used to measure _______________.

16. kg stands for what unit of measurement? _______________

17. Answer the following:

1 Kilometer = __________________ meters

0.45 liter = ____________________ milliliters

5000 milligrams = ___________________ grams

130 meters = ________________ kilometers

2500 milliliters = _____________ liters

0.017 grams = ________________ milligrams

18. What is the single most important rule for your safety? ________________________________________________________________________________

19. It is essential that you ___________ your hands thoroughly after every scientific activity.

Homework – Answer Workbook 1-3

Metacognition1- Read in your textbook the topic “The fields of Biology” Pg.

2- Analyze the following information in the paragraph and answer the question.

Now a day, the Biological Science Faculty of the Universidad Autónoma de Nuevo León, works in investigation projects with microorganisms that improves the water treatment that are disposed. They also develop strategies for microbial bioremediation to lower the negative impact of the polluting compounds in the ecosystems.

In which field or fields of biology does this type of investigation located? Justify your answer.

______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Answer Chapter Mystery in Workbook

Chapter 1 Assessment1.1 What is science?1- Which of the following statements about the image shown on page 28 is NOT and

observation?a- The insect has three legs on the left side.b- The insect has a pattern on its backc- The insect’s pattern shows that it is poisonous.d- The insect is green, white and black.

2- The statement “The worm is 2 centimeters long” is a (n)a- Observationb- Theoryc- Inferenced- Hypothesis

3- An inference isa- The same as an observationb- A logical interpretation of an observation.c- A statement involving numbersd- A way to avoid bias.

4- To be useful in science, a hypothesis must bea- Measurableb- Observablec- Testabled- Correct

5- Which of the following statements about a controlled experiment is true?a- All the variables must be kept the same.b- Only one variable is tested at a timec- Everything can be studied by setting up a controlled experiment.d- Controlled experiments cannot be performed on living things.

6- What are the goals of science?________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

7- How does an observation about an object differ from an inference about the object?________________________________________________________________________________________________________________________________________________________________

________________________________________________________________________________________________________________________________________________________________

8- How does a hypothesis help scientists understand the natural world?________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

9- Why does it make sense for scientists to test just one variable at a time in an experiment?________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

10- Distinguish between an experimental group and a control group.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

11- What steps are involved in drawing a conclusion?________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

12- How can a graph of data be more informative than a table of the same data?________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

13- Design an Experiment. Suggest an experiment that would show whether one food is better than another at speeding an animal’s growth.

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

14- Control Variables. Explain why you cannot draw a conclusion about the effect of one variable in an investigation when the other key variables are not controlled.

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

1.2 Science in Context15- A skeptical attitude in science

a- Prevents scientists from accepting new ideas.b- Encourages scientists to readily accept new ideas.c- Means a new ideas will only be accepted if it is backed by evidence.d- Is unimportant

16- The purpose of peer review in science is to ensure thata- All scientific research is fundedb- The results of experiments are correct.c- Published results are publishedd- Published results meet standard set by the scientific community.

17- A scientific theory isa- The same as a hypothesisb- A well- tested explanation that unifies a broad range of observation.c- The same as the conclusion of an experiment.d- The first step is a controlled experiment.

18- Why are scientific theories useful?________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

19- Why aren’t theories considered absolute truth?________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

20- Evaluate. Why is it misleading to describe science as a collection of facts?________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

21- Propose a Solution. How would having a scientific attitude help you in everyday activities, for example, in trying to learn a new skill?

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

22- Conduct Peer Review. If you were one of the anonymous reviewers of a paper submitted for publication, what criteria would you use to determine whether or not the paper should be published?

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

1.3 Studying Life23- The process in which two cells from different parents unite to produce the first cell of a new

organism is calleda- Homeostasisb- Developmentc- Asexual reproductiond- Sexual reproduction.

24- The process by which organisms keep their internal conditions relatively stable is calleda- Metabolismb- A genomec- Evolutiond- Homeostasis.

25- How are unicellular and multicellular organisms alike? How are they different?________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

26- Give an example of changes that take place as cells in a multicellular organism differentiate.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

27- List three examples of stimuli that a bird responds to.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

28- Measure. Use a ruler to find the precise length and width of this book in millimeters._____________________________________________________________________________

29- Interpret Visuals. Each of the following safety symbols might appear in a laboratory activity in this book. Describe what each symbol stands for. (Hint: Refer to Appendix B.)

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Use the graphs on Pg 30 to answer the following questions.30- Analyze Data. Write a sentence summarizing what each graph shows.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

31- Interpret Graphs. Before any of the graphs could be used to make direct comparisons among the populations, what additional information would be necessary?

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

32- Compare and Contrast. Graphs of completely different events can have the same appearance. Select one of the graphs and explain how the shape of the graph could apply to a different set of events.

_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Guided Inquiry • Skills Lab

Lab Session: Using a Compound MicroscopeObjective: Learn how to properly use and care a compound microscope. Estimate the size of objects using a compound microscope. Instructions: Read through the laboratory practice and listen to your teacher’s instructions. Answer the question and tables from what you learn and investigated on compound microscopes.

Using a Compound Microscope

ProblemWhat is the proper way to use a compound microscope and prepare a wet-mount slide?

Introduction

A microscope is a device that magnifies objects that are too small to be seen by the eye alone. A compound microscope has three main parts that work together to bring a magnified image to your eye. A light source illuminates, or lights up, the object being observed. A lens on the nosepiece magnifies the image of the object. A lens in the eyepiece further enlarges the image and projects the image into your eye.

Thin glass plates, or slides, are used to observe biological samples under a microscope. The slides are made in one of two ways. A prepared slide is made by enclosing a sample in glass. This permanent slide can be stored and viewed many times. A wet-mount slide is made by placing a drop of liquid containing the sample between the slide and a thin glass coverslip. This temporary slide is made to last only a short time—usually one lab period.

Build Vocabulary

Term Definition

magnify To cause an object to appear larger than it is

magnification The amount by which an image is made larger, or magnified

objective lens The lens nearest to the object being viewed with a microscope

focus To alter the location or shape of a lens so that an image seen with the lens is clear and sharp

adjustment A change that is made to make something work better

fine Very tiny, as in the small distance a lens moves when the fine adjustment knob is turned

Name Class Date

The microscope you will use will be similar to the one shown in Figure 1. A microscope is an instrument that requires careful handling. In this lab, you will learn how to use a compound microscope. You will also learn how to prepare a wet-mount slide.

Figure 1 Parts of a microscope

Skills FocusObserve, Calculate, Compare and Contrast

Materials• compound microscope • microscope slide

• lens paper • dropper pipette

• prepared slide • coverslip

• scissors • dissecting probe

• newspaper

Safety To avoid damaging a microscope, follow the rules that are stated in this lab.

Handle slides gently to avoid breaking them and cutting yourself. Alert your teacher if you break a glass object. To avoid electrical shocks, make sure that cords, plugs, and your hands are dry when using the light source. Use the scissors only as instructed. Do not direct the points of the scissors toward yourself or others.

Pre-Lab Questions1. Infer Why is it important to keep a microscope away from the edge of the

table?

2. Predict How will the image of the letter e change when you switch from low power to high power?

ProcedurePart A: Prepare the Microscope

1. Collect a microscope and bring it to your workstation. Grasp the arm of the microscope with one hand, and place your other hand under the base. Place the microscope at least 10 cm from the edge of your table or desk with the arm facing you.

RULE 1: Always carry a microscope with both hands.

2. You can find the magnification for a lens on the side of the objective. In Figure 2, the lens has a 10× magnification. This value means that the lens will produce an image that is ten times the actual size of the object being viewed.

Figure 2 Nosepiece with objective lens

11

Name Class Date

3. Find the magnification for each objective lens and record this data in the table. Then find and record the magnification for the eyepiece. To find the total magnification under each power, multiply the objective magnification by the eyepiece magnification. Record the results in the table.

Total magnification = Objective magnification × Eyepiece magnification

Data Table

ObjectiveObjective

MagnificationEyepiece

MagnificationTotal

Magnification

Low power

Medium power

High power

4. Before you use a microscope, you should clean the objective lenses and the lens in the eyepiece.

RULE 2: To avoid scratching the lenses, always use lens paper to clean the lenses. Never touch a lens with your finger.

5. Look at the microscope from the side. The low-power objective should be about 3 cm from the stage. Rotate the nosepiece until you hear the high-power objective click into position. Note that the high-power objective is longer than the low-power objective.

RULE 3: Always view the microscope from the side when you move an objective to avoid damaging the lens or a slide.

6. Rotate the nosepiece until the low-power objective clicks into position. Find the coarse adjustment knob and practice using it to raise and lower the nosepiece.

7. Plug in the cord attached to the light source. Look through the eyepiece. Practice using the diaphragm to adjust the amount of light entering the microscope.

RULE 4: To avoid eyestrain, keep both eyes open while looking through the eyepiece.

Part B: View a Prepared Slide

8. Center the prepared slide over the opening in the stage. Hold the slide by its edges to avoid leaving fingerprints that could blur the image. Use the stage clips to hold the slide in place.

9. Make sure the low-power objective is still in position. While you look from the side, use the coarse adjustment to move the objective as close to the stage

24

as possible without touching the stage.

10. Use both eyes to look through the eyepiece. Turn the coarse adjustment to move the low-power objective away from the stage until the object comes into focus.

RULE 5: To avoid hitting a slide, never move an objective toward the stage while looking through the eyepiece.

11. Use the fine adjustment to bring the object into sharp focus. You may need to adjust the diaphragm to see the object clearly. Draw what you can see under low power in Figure 3.

12. While you view the lenses from the side, rotate the high-power objective into position. Look through the eyepiece and use the fine adjustment to bring the object into focus. Draw what you can see under high power in Figure 3.

RULE 6: Never use the coarse adjustment when you are using a high-power objective.

13. Move the low-power objective back into position. Remove the slide from the stage.

Figure 3 Prepared slide under low power and high power

Part C: Prepare a Wet-Mount Slide

14. Look for the smallest lowercase letter e you can find in a newspaper. Cut out the letter and place it on the center of a slide.

15. Use a dropper pipette to place one drop of water on the letter, as shown in Figure 4.

Get Ready! When you place a coverslip on a slide, you need to lower it slowly to keep air bubbles from being trapped between the slide and the coverslip.

16. Place a coverslip so that one edge touches the side of the drop at a 45º angle, as shown in Figure 4. Use a dissecting probe to slowly lower the coverslip onto the paper.

25

Figure 4 How to prepare a wet-mount slide

17. If necessary, use a paper towel to dry the bottom of the slide. Center the slide on the stage with the e right side up.

18. Rotate the high-power objective into position and bring the e into focus. Draw what you can see under high power in Figure 5.

19. As you look through the eyepiece, move the slide to the left. Notice the way the image of the letter moves. Now move the slide to the right and notice the way the image moves. Move the slide toward the arm and away from the arm and observe how the image of the letter moves.

20. Rotate the high-power objective into position and focus the e. Draw what you can see under high power in Figure 5.

Figure 5 Wet-mount slide under low power and high power

21. Take apart the wet mount. Discard the newspaper. Clean the slide and coverslip with soap and water. Carefully dry the slide and coverslip with paper towels and return them to their boxes.

22. Rotate the low-power objective into position and use the coarse adjustment to place it as close to the stage as possible without touching the stage.

23. Carefully pick up the microscope and return it to its storage area.

26

Analyze and Conclude1. Apply Concepts The adjective compound means “made by the combination

of two or more parts.” In a compound microscope, which are the parts that are being combined? Why are they being combined?

2. Compare and Contrast How is the image of an object seen through a high-power objective different from the image seen through a low-power objective?

3. Observe How did the position of the e appear to change when it was viewed through the microscope?

4. Draw Conclusions You observe an ant through the eyepiece of a microscope. The ant moves toward the bottom of the slide and then it moves to the right. In which direction is the ant actually moving?

5. Form a Hypothesis Why must scientists cut a thin slice from a biological sample before they can view it with a microscope?

Build Science Skills

27

Use the microscope to view a small piece of a color photograph from a magazine or newspaper. Draw or describe the details you are able to see when the photograph is magnified.

Criterio

Cumple

Pond

erac

ion

Califi

caci

on

ObservacionesSi No

1 Pre- Lab Complete 0.2

2Sigue las instrucciones y procedimientos 0.2

3 Trabaja colaborativamente 0.24 Bata de Laboratorio 0.2

5

Observa las normas de seguridad durante el desarrollo de la practica. 0.2

TOTAL

Integrative ProjectMake teams of 4 or 5Design an experiment that can be developed in school grounds, laboratory and nearby outskirts. The topics such as: healthy foods against junk food, food and health (being in good shape), the photosynthetic process, coca cola-Pepsi-big cola, the effect of light and other factors in the growth of plants, pollution, among others.

The experiment must:

Investigate on the topic you decide. (1 page long) Include a variable dependent, independent and a control. Establish a control and experimental groups. A hypothesis Write step by step the procedure you will develop A record of the results of the experiment. You must prove your results taking pictures that show

the progress of the experiment as well as your final result. A conclusion that accepts or rejects the hypothesis.

What to hand in:

A written report. It must be clean organized and include the steps of the scientific method in order. Your report must include:

28

References in introduction and wherever required and as described by the teacher. Ask your teacher assistance in case you don´t understand what to do.

A topic. In bold type. Introduction (introduce the topic of your project and give reasons that support your working

with it, make sure you write references that support your comments). State the problem. Define what you are looking for in your experiment. The hypothesis. State an appropriate hypothesis for your work. The procedure followed during the experiment. Describe step by step, use numbers. A record of results pictures included. The pictures must be real, pictures you took during the

experiment. You or your partners must be in it to guarantee it is your real experiment. A conclusion explaining why your hypothesis was accepted or rejected (support your results

with data taken from other books or the internet, include the reference). Bibliography

The written paper must not have mistakes, grammar, spelling or mistakes in the process.

A power point presentation must be made so the team shows the experiment to the group.

Your power point presentation must:

Include in every slide background color combination. Letter size good for clear reading. Make sure the letters can be read clearly even if you have a background.

Include no errors, grammar or spelling. Not have lots of words in a slide. Just basic key words that help the speaker expand the content. Include the step of the scientific method mentioned in every slide. Include full student names and correctly spelled.

Rubrics will be used for both written paper and presentation.

RUBRIC FOR WRITTEN REPORT SCIENTIFIC METHOD

Concept to evaluate 0 1 2

29

FAIR GOOD EXCELLENT

Hypothesis was clear and specific

No hypothesis The hypothesis is incorrectly, or not clear.

The hypothesis was written correctly

Content Two or more of the steps stated in directions are missing

At least one of the points is not included, such as conclusion, introduction, etc.

It includes everything required: topic, introduction, state problem, hypothesis, procedure, results, conclusion and bibliography

Presentation It is not clean. It is not organized. It does not respect the sequence according to the scientific method

It is clean, but it is not organized or it does not follow the sequence according to the scientific method

This report is clean and organized. It follows an order according to the scientific method

Results There are no pictures that support results or there is no description, in writing, of the results

There is a description of results, but it is not clear or does not correspond to the pictures

It clearly describes the results and shows pictures of the experiment that support them

Errors There are lots of grammar mistakes or some sentences are not understood. There are different mistakes in the process

There are just a few grammar mistakes or misspellings or there is just one mistake in the process

No grammar mistakes are observed. There are no errors in the process.

This Rubric prepared by M.C. Alejandro Cruz Biology Coordinator

RUBRIC FOR PRESENTATION SCIENTIFIC METHOD

30

Concept to evaluate 0

FAIR

1

GOOD

2

EXCELLENT

Technical specification

Limited images or images are not adequate for a class presentation

Over use of animations to the point they are distracting and have nothing to do with topic. Or color combination inadequate you cannot read clearly

Every slide contained at least one graphic combination of background color and letter size good for clear reading

Mechanics Presentation contained three or more errors (spelling or grammar)

Presentation contained 1 or 2 spelling or grammar errors

Presentation had no misspelling or grammatical errors

Presentation of the information

There is a lot of information written on the slide

There isn´t a lot of information, but it doesn´t help the speaker to expand the content

The information presented allows the speaker to expand the content

Organization Slides do not have written the step of the scientific method, it is only mentioned when the topic begins

Some slides specify the step mentioned (written), but not every slide. Or the order of the steps is not correctly placed in the presentation

The presentation shows in each slide the step of the scientific method being mentioned

Author Student names are not mentioned in the presentation

Student names included although there are mistakes or at least one is not complete

Full student names included and correctly spelled

This Rubric prepared by M.C. Alejandro Cruz Biology Coordinator

31