| A | B |
| energy | the capacity to do work |
| physical change | a change from one form to another |
| chemical change | change resulting in an entirely new substance |
| evaporation | change from liquid to gas |
| endothermic | process in which heat is absorbed from surroundings |
| exothermic | process in which a system releases heat to surroundings |
| law of conservation of energy | energy cannot be created or destroyed but can be changed from one form to another |
| heat | energy transferred between objects of different temperature |
| kinetic energy | energy due to motion |
| temperature | measure of average kinetic energy |
| specific heat | quantity of heat required to raise 1 gram of a material by 1 degree celsius |
| scientific method | specific scientific procedure |
| hypothesis | explaination based on observation and that can be tested |
| theory | explaination for a phenomenon that is based on observation and experimentation |
| law | a summary of many experimental results and observations. Tells how things work. |
| law of conservation of mass | mass cannot be created or destroyed in chemical reacitons |
| potential energy | stored energy |