Expansion of Solids, Liquids, and Gases

(a)   means to increase in volume.

(a)   means to decrease in volume.

Which state of matter shows the largest change in volume when warmed or cooled?

• Solid

• Liquid

• Gas

• Metal

Is this graph a warming curve or a cooling curve? (Does it show warming or cooling?)

• Warming

• Cooling

Is this graph a warming curve or cooling curve?

• Warming

• Cooling

Which graph show what happens as soon as a thermometer is placed in ice cream?

• 
• 

Why does a substance expand when it is heated?

Do all substances expand and contract at the same rate?

• Yes

• No

Why do liquids expand more than solids?

• Solid particles don't move at all.

• In a solid, particles are held in a fixed arrangement and can't move around as much.

• Liquids are slippery

• Particles in a liquid are more attracted to each other than in a solid.

True or False: A thermometer works because liquids expand and contract at predictable rates for certain temperatures.

• True

• False