Thermal Energy

What happens to water when it is heated?

• It freezes

• It turns into ice

• It evaporates

• It becomes colder

Which object would stay cool the longest in the sun?

• A metal spoon

• A black shirt

• A wooden block

• A frying pan

What is the main source of thermal energy on Earth?

• Fire

• The Sun

• The Moon

• Electricity

Which of these changes needs thermal energy?

• Water freezing

• Ice melting

• Glass breaking

• A balloon popping

When thermal energy is added to a solid, it can:

• Freeze

• Stay the same

• Melt into a liquid

• Disappear

How does heat usually move?

• From cold to hot

• In circles only

• From hot to cold

• It does not move

Which is the best conductor of heat?

• Rubber

• Plastic

• Glass

• Metal

Which material is used to keep things warm?

• Ice

• Wool

• Aluminum foil

• Water