During a chemical change, chemical energy may be changed to other forms of energy. Other forms of energy may also be changed to chemical energy:

How does a scientist the government? a. the scientist tells people in society what to do. b. the scientist determines the policies that the government spends money on. c. the scientist provides unbiased information to the government. d. the scientist makes laws based on his or her research results.

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Stage in which a star’s outer layers have started to cool and grow outward?