| A | B |
|---|
| chemical energy | energy stored in chemical bonds |
| chlorophyll | the green pigment in the leaves and stems of plants that is necessary for the production of plant food by photosynthesis |
| chloroplast | structure in plant cells which contains chlorophyll |
| combustion | the process of burning fuels |
| elastic potential energy | potential energy associated with objects that can be stretched or compressed |
| gravitational potential energy | potential energy that depends on height |
| electrical energy | energy produced by moving electric charges |
| energy | the ability to do work or cause change |
| energy conversion | a change from one form of energy to another |
| force | a push or pull |
| fossil fuel | fuel formed from the remains of living organisms millions of years ago (nonrenewable) |
| fuel | material that releases energy when it burns |
| kinetic energy | the energy of motion |
| law of conservation of energy | states that energy cannot be created or destroyed |
| mechanical energy | the energy associated with the motion or position of an object |
| nuclear energy | energy stored in the nucleus of an atom |
| photosynthesis | the process through which plants make food |
| pigment | colored chemical compound |
| potential energy | energy that is stored and held in readiness |
| power | rate at which energy is transferred from one object to another or converted from one form to another |
| radiant energy | energy that travels in waves |
| respiration | the process by which glucose is broken down to release energy |
| thermal energy | a measure of the energy of the particles in an object |
| work | the product of force and distance when a force is used to move an object |
