Ch. 2 Sec. 1-3 Matter and Energy Matter has mass and volume

Matter is made of atoms

Matter combines to form different

substances

Different States of Matter

100 100 100 100

200 200 200 200

300 300 300 300

400 400 400 400

500 500 500 500

Texture, shape, size, and color are all examples of...

Physical Properties

True or false. When the state of matter change, it is considered to be

a chemical change.

False; only the arrangement of the

atoms changes.

Density describes the relationship between a substance’s

A.matter and massB.mass and volumeC.volume and are

D.temperature and mass

B. Mass and Volume

What is the formula to determine density?

Mass divided by volume (m/v)

The only TRUE indication that a chemical change has taken

place is...

A new substance is being formed!

Name ONE of the FIVE indicators that a chemical change has taken place.

1. Color Change2. Formation of a gas3. Formation of a solid

4. Production of an odor

5. Temp. change

What is the process in which a solid becomes a liquid?

.

Melting

What are the two processes in which a liquid becomes a gas?

Evaporation and Boiling

How do evaporation and boiling differ?

A.In evaporation, there’s a formation of gas.

B.In boiling there’s a formation of gas. C.In evaporation, a gas becomes a liquid

D.In boiling, a gas becomes a liquid.

B. In boiling, there’s a formation of gas

How do the freezing point and melting point of a substance

relate?

They are the same temperature!

What is the process in which a solid changes directly into a

gas?

Sublimation

What is the boiling point of water?

100 degrees Celsius or 212 degrees Farenheight

What is the process in which liquid becomes a solid is known as

Freezing

__________ is the measure of how much of a substance dissolves in a given

volume of a liquid.

Solubility

True or false. You should always use your five senses to help you identify

a substance.

FALSEEEEEE!! AHHH

What process is this picture depicting?

Melting

What is the unit used for density?

g/cm cubed

Whether a substance is a solid, liquid, or gas depends on how close its atoms

are to one another and...

How free the atoms are to move

True or False. Particles in a liquid of any temperature will

move at the same rate.

FALSE. They will move faster at higher temperatures.

FALSE. Many items may have the same densities.

True or False. You can identify a substance’s identity just based

on its density.