HEAT ENERGY Review. The flow of energy from one material to another is ___. heat

HEAT ENERGY

Review

The flow of energy from one

material to another is ___.

heat

Heat moves from _______

objects to cooler objects.

warmer

When warm and cool objects touch, energy is ______ from the warmer object to the cooler object.

transferred

Heat is produced by ______ when two objects, such as your hands, are rubbed together.

friction

A material that does not

transfer heat very well is called

an ______.

insulator

The opposite of an insulator is a _______, which allows heat to transfer quickly.

conductor

______ is a measure of how

hot or cold something is.

temperature

Name the two scales used for measuring temperature.

Fahrenheit

Celsius

IMPORTANT TEMPERATURES TO REMEMBER

Fahrenheit Celsius

Boiling 212° 100°

Freezing 32° 0°

Body 98.6° 37°

•What word means to get larger?

expand

What word means shrinks?

contracts

One major source of

heat is the _________.

sun

________ fuels formed millions of years ago from the remains of plants and animals. fossil

Fossil fuels provide energy

when they are ___________.

burned

Name three fossil fuels.

coal

oil

natural gas

Are fossil fuels renewable or nonrenewable? nonrenewable