Heat moves in one direction. If something is cold and it is put into a pot of boiling water all of the heat is going to go into what you put in there that is frozen. We use the sun to keep us warm at night and during the day. Our earth has heat to keep it going. We use nuclear energy every day for safety.
Chemical reactions find new ways to live.
Friction we use everyday by putting oil against and object so not as much friction is given off at one time. Electricity we use everyday at school, home, and at work. We would still be holding candles in our hand if it weren t for electricity. Gases are also a very important part of the earth. We breathe in several different gases at one time.