Heat

Heat is a form of energy that involves the movement of __________.

• power

• molecules

• time

• people

We can create heat in several different ways. Some of these ways include: burning, rubbing, mixing, and using ________.

• sunlight

• power

_________ is the force that slows down moving objects. When you rub two things together you are creating ___________.

• Sunlight

• Gasoline

• Friction

• Energy

Heat can change matter in different ways. Heat can cause ______ _______ or a change in the chemical make-up of a substance.

• chemical changes

• slow changes

• fast changes

• important changes

The most powerful source of energy is (the)_______. Before the invention of electricity and furnaces, people were using the ______ to warm their homes.

• hot water

• sun

• earth

• fire

A _________ allows thermal energy or heat to travel through them quickly.

• insulator

• conductor

Metal is a good __________.

• insulator

• conductor

_______ do not allow thermal energy or heat to pass through them easily.

• Conductor

• Insulator

______ is a good example of an insulator.

• metal

• plastic

A ________ is a good tool for measuring temperature.

• scale

• barometer

• thermometer