Chapter 4 - Review

What are the 3 states of matter?

• Solid

• Liquid

• Gas

• Mist

• Frozen

In a ​ (a)   , the molecules can slide past each other.

In a ​ (b)   , the molecules can spread out in all directions.

In a ​ (c)   ​ , the molecules are packed together very tightly.

• liquid
• gas
• solid
• fizz
• smoke
• oxygen

Match the following

• Solid

• have a fixed shape

• Gas

• can be poured and have no fixed shape

• Liquid

• have no fixed shape and fill the whole container

Scientists have no identified a fourth state of matter, what is it?

• Fire

• Plasma

• Oxygen

• Aluminum

A substance can change from a solid directly into to a gas

• True

• False

​ (a)   change is the most

common cause for the state to change

• Temperature
• Outside
• Oxygen
• Moving

molecules lose energy and move very close together

• Melting

• Freezing

• Evaporation

• Condensation

molecules in a liquid gain more energy and move even farther apart

• Melting

• Freezing

• Evaporation

• Condensation

molecules gains energy and move farther apart

• Melting

• Freezing

• Evaporation

• Condensation

A substance can change from a solid directly into to a liquid

• True

• False