Science Review 21

How does heat move?

• from a warmer to a cooler object

• from a cooler to a warmer object

• toward a hot object

• away from a cold object

How is energy from the Sun transferred?

• by radiation

• by conduction

• by convection

• by the force of gravity

__________ is the transfer of heat by the movement of a fluid.

• Conduction

• Convection

• Radiation

Cold water has ______________ density than warm water.

• less

• more

• the same

When you touch hot sand, heat is transferred by _________ to your skin.

• conduction

• convection

• radiation

_____________, convection, and conduction are the three types of heat transfer.

• Conveyance

• Radiation

• Translocation

Hot water rises and cold water sinks. Is this:

• Convection

• Conduction

• Radiation

Stir frying vegetables is an example of

• Convection

• Conduction

• Radiation

A spoon in a cup of hot soup becomes warmer

• Convection

• Conduction

• Radiation

A hot air balloon rises because of

• Convection

• Conduction

• Radiation