tto1 - ch 5 - phase changes

The three states of matter are: 

• Solid, liquid air
• Earth, wind, water
• Solid, liquid, gas
• Water, ice, water vapour

If you heat a solid, it will

• Melt
• Freeze, 
• Evaporate
• Nothing

If you cool a gas it will

• Condensate
• Evaporate
• Freeze
• Melt

If a cold can of cola left outside water droplets will appear on the can. This process is called

• Condensation
• Evaporation
• Freezing
• Melting

The freezing point of water is the same as its

• Boiling point
• Melting point
• Condensation point

A shrinking puddle is an example of _____________. 

• Condensation
• Evaporation
• Melting
• Freezing

The characteristic temperature at which a pure solid changes to a liquid is its_________________ point.

• Evaporation
• Freezing
• Melting

Why does ice float?

• Solid water is more dense than liquid water.
• Solid water is less dense than liquid water.
• Solid water is as dense than liquid water.
• Ice sinks 

Which state of matter undergoes changes in volume most easily?

• Gas
• Liquid
• Solid