Matter

Which is a property of a liquid?

• Particles are farther apart than when in the other states, and they move freely. 
• Particles are very close together
• Particles can move around but stay in the container that they are in.

Which is a description of a gas?

• The particles are able to move around freely.
• The particles can move around but usually stay in the container that they are in. 
• The particles are packed tightly and cannot move very much. 

Which is a description of a solid?

• I take the shape of the container that I am in. 
• I have a definite shape and volume. 
• I can only be held in a container if it has a lid. 

Chocolate melting is an example of ______________. 

• a chemical change
• a physical change

Making pancakes is an example of _______________.

• a chemical change
• a physical change 

A penny that has turned from a copper color to a green color after sitting outside in the humid air. 

• chemical change
• physical change

Burning wood for a campfire is an example of a _____.

• chemical change
• physical change

Cutting paper into several different shaped pieces is an example of a _______.

• chemical change
• physical change

Chopping wood is an example of a ____________.

• chemical change
• physical change

An observation of a chemical change may include _______.

• taking up a different amount of space
• a decrease in volume
• an increase in its mass
• changing to a new substance