Week 2 October 22-26Density

Atom Test 3

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u A= Test

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u P=Looks like students writing down school wide heading and bubbling I.D. number. Set folders up and don’t write on test. Wait until test has been picked up.

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Benchmark SC.8.P.8.3 Explore and describe the densities of various materials through measurement of their masses and volumes.

Know Understand Do

DensityMassvolume

§ How density involves the measurement of mass divided by volume

§ Calculating density, mass and volume

ü Lab: Densityü 4 tab foldableü Study Jam ü Homework (2

column notes 7/7

ü Walking Notesü Homework

Online quiz

Properties of Matter 4 Tab Foldable

Density

Write 6

details

p.200

Volume

Write 6

Details

p.197 and

199

Mass

Write 6

details p.

197 and

198

Matter

Write 6

details p.

187

4 Tab Foldable

uC=0 during instruction 2=collaboration

uH=ask 3 before me

uA= Foldable

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uP= Looks like students looking for text evidence and sharing with the group in a round robin with group.

uS=Check for success.

Density page 197uThe measure of the mass of a material in a

given volume.

uExpressed in g/cm3

uCan be expressed in milliliters 1g/mL

uDetermine by dividing mass by it’s volume.

uD=M/V

uObjects with a density more than 1g/cm3

will sink and and object with a density less than 1g/cm3 will float.

Volume u The amount of space that a matter takes up.

u Solids, liquids and gases all have volume.

u Unit cm3 or 1 mL

u Gas doesn’t have a definite volume because

particles move to fill container.

u Regular objects can be measured by multiplying

length x width x height.

u Irregular objects shape (1) submerge into know

volume of water. Then subtract the displaced

value and that equals the volume.

Mass

u The amount of matter in an object

u Mass never changes even with location.

u Weight changes as the force of gravity acts on it.

u Scales are used like the triple beam balance

u Unit is Kilograms

u Pounds are used for weight

u 1 Kilogram equals 2.2 pounds

u 1000 grams equals 1 kilogram

Matter

uAnything that has mass and takes up space.

uWe classify matter by different properties.

uWe can find matter as a solid, liquid and

gas

uChemistry is the study of matter.

uWe classify matter a single kind of

substance or compound.

uFor example sodium chloride is salt, a

compound.

Properties of Matter Study Jam

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u A= Cornell Notes 10 questions and 10 answers

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u 0055student and use same for password. Create 10 notes and question and take test. Show teacher score.

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Properties of Matter (Density)

Essential Questions: How do you calculate Density?http://studyjams.scholastic.com/studyjams/jams/science/matter/properties-of-matter.htm

Questions Notes and Evidence

ü Density

ü Matter

ü Mass

ü Weight

ü Volume

Justify your answer:

Name Date

PeriodPage

Walking Notes

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u P= No communicating with other groups. Try your best to infer what the missing word is with in the context of the sentence.

u S=Check for success

Check Point 1

u ________is measured in grams and doesn’t change.

u Mass

u _________ is the measure of gravity on an object mass.

u Weight

u Weight changes based on _________, on the moon the

weight- is smaller

u position

u Weight is measure in pounds or Newtons

u Newtons

u Since gravity is less on the moon things will tend to

_______.

u float

Check Point 2u _________ is the amount of space an object takes

up.

u Volume

u Volume always stays the ________.

u same

u Volume can be measure by multiplying

______________

u length times width times height

u Volume can be measured by _____________ initial

volume – final volume called ___________.

u irregular objects, displacement

Check Point 3

u Matter can be solid, _______ and gas and all have volume.

u liquid

u Volume can be measured by using a _____________of

measuring cup.

u graduated cylinder

u __________determines if an object will sink or float

u Density

u An object will float if it’s density is ___________thank water.

u less

u An object will sink if its density is more than water.

u more

Check Point 4u ________ is how light or heavy something is based on it’s size.

u Densityu Density equals ________/volume

u mass

u Matter is anything with mass and __________.

u volume

u Matter involves mass, ___________, volume and density

u weight

u __________ is the stuff all around us.

u Matteru ___________ is the amount of matter contained in an object.

u Mass

Lab Density

uC= 0 During instruction and debrief

uH=ask 3 before me

uA= Lab

uM= limited to 2 (helper)

uP= Looks like students using equipment properly and time efficiently.

uS=Check for success

Lab Density

Essential Questions:

If the volume of the cubes are the same what factor

Cause a change in density?

Questions Notes and Evidence

1. What is your claim?

2. What is the independent

variable?

3. What is the dependent

variable?

4. What are some

quantitative observations?

5. What are some

qualitative observations.

6. Collect the Data:

Justify your answer:

Name

Date

Period

Page

Object 1 Object 2 Object 3

g g g

v v v

d d d

Practice Questions

Keesha measured the mass of the block

shown below to be 810 grams (g)

u Keesha measured the mass of the block shown below to be 810 grams (g).

u What is the density of the block? The equation d = m/V is used to

calculate density.

u A. 2.7 g/cm3

u B. 27 g/cm3

u C. 38.6 g/cm3

u D. 243,000 g/cm3

Max measures the volume of an irregularly

shaped rock as shown below. The density of

the rock is 2.2 grams/milliliter (g/mL).

u What is the mass of the rock? The equation d = m/V is used to

calculate density.

u A. 2.3 g

u B. 11.0 g

u C. 18.2 g

u D. 88.0 g

Julio measured the mass of a small rock as

11.0 grams. Then he measured the volume of

the rock as shown in the illustration below.

u What is the density of Julio’s rock?

u A. 1.1 g/cm3

u B. 2.2 g/cm3

u C. 5 g/cm3

u D. 11 g/cm3

The two cubes on this pan balance have the

same size but different masses.

u What is the volume of each cube?

u A. 5 cm3

u B. 15 cm3

u C. 25 cm2

u D. 125 cm3

Lianne uses a balance to measure as an irregularly shaped

object as shown below. She also measures the volume of the

object to be 15.9 cubic centimeters (cm3).

u What is the density of the object? The equation d = m/V is used to calculate

density.

u A. 0.000 g/cm3

u B. 0.127 g/cm3

u C. 7.86 g/cm3

u D. 1,990 g/cm3

ASSESSMENT

u Amin had two metal cubes of identical sizes. He placed cube A on one side of a pan balance and cube B on the other side of the balance. The pan that held cube B was now lower than the pan that held cube A. What conclusion can Amin draw about the two cubes?

u A. The weights of the two cubes are the same.

u B. The volumes of the two cubes are different.

u C. The masses of the two cubes are the same.

u D. The masses of the two cubes are different.

u Amin had two metal cubes of identical sizes. He placed cube A on one side of a pan balance and cube B on the other side of the balance. The pan that held cube B was now lower than the pan that held cube A. What conclusion can Amin draw about the two cubes?

u A. The weights of the two cubes are the same.

u B. The volumes of the two cubes are different.

u C. The masses of the two cubes are the same.

u D. The densities of the two cubes are different.

u Which phrase describes the mass of an ice cube?

u A. amount of space that the ice cube occupies

u B. estimation of the weight of the ice cube

u C. total amount of water in the ice cube

u D. value obtained by multiplying its length times

width times height

u Paul placed an ice cube into a beaker on a hot plate.

The ice cube changed from a solid to a liquid and

then to a gas. During this process, which property of

the ice cube remained unchanged?

u A. density

u B. mass

u C. temperature

u D. volume

u Which term should Kareem place in the Not Matter column to complete this

chart?

u A. air

u B. ice

u C. light

u D. paper