1. HEAT ENERGY Review

2.  The flow of energy from one material to another is ___. heat

3.  Heat moves from _______ objects to cooler objects. warmer

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

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

6.  A material that does not transfer heat very well is called an ______. insulator

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

8.  ______ is a measure of how hot or cold something is. temperature

9.  Name the two scales used for measuring temperature. Fahrenheit Celsius

10. IMPORTANT TEMPERATURES TO REMEMBER Fahrenheit Celsius Boiling 212 ° 100 ° Freezing 32 ° 0 ° Body 98.6 ° 37 °

11. What word means to get larger? expand

12.  What word means shrinks? contracts

13.  One major source of heat is the _________. sun

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

15.  Fossil fuels provide energy when they are ___________. burned

16.  Name three fossil fuels. coal oil natural gas

17.  Are fossil fuels renewable or nonrenewable? nonrenewable