Unit 1 Test Review

The melting point of a substance is the temperature at which the substance changes from a solid to a ______

• Liquid

• Gas

• Plasma

Electrical conductivity is an example of a ____________

• chemical property

• chemical reaction

• matter

• physical property

What state of matter has a definite shape and a definite volume?

• solid
• liquid 
• gas

Which state of matter has a definite volume but no real shape of its own?

• solid
• liquid
• gas

Which state of matter has neither a definite shape nor a definite volume?

• solid
• liquid
• gas

Name the three states of matter:

• crystalline, amorphous, solid
• solid, liquid, gas
• energy, matter, mass
• solid, fluid, liquid

Every solid, liquid, or gas is made up of these. They are the smallest pieces of matter.

• states of matter

• atom

• element

• solid

Solids have...

• definite volume

• indefinite volume

The particles in a liquid...

• vibrate in place

• are perfectly still

• move around but stay close together

• move around in all directions and have lots of empty space between them

The particles in a solid...

• vibrate in place

• are perfectly still

• move around but stay close together

• move around in all directions and have lots of empty space between them