| Term | Definition |
| Cellular Respiration | the process of breaking down food to yield energy |
| Photosynthesis | biological synthesis of chemical compounds in the presence of light |
| Conduction | the transfer of energy between the particles of matter (typically a solid) |
| Convection | the transfer of heat energy in a gas or liquid by means of the currents within |
| Radiation | the transfer of energy in the form of rays, waves, or particles |
| Insulators | a substance that allows for slow energy transfer |
| Conductors | a substance that allows for energy transfer |
| Brownian Motion | the idea that the atoms that make up matter are in constant motion |
| Heat | the total energy of the random movement of molecules of a substance/object |
| Temperature | the measurement of the movement of molecules in a substance/object |
| The 4 States of Matter | solid, liquid, gas, plasma |
| Hypothesis | a prediction about the relationship between the independent and dependent variables |
| 1st Law of Thermodynamics | the law that states that energy cannot be created nor destroyed |
| 3rd Law of Thermodynamics | the law that states that in order for motion to stop we have to reach absolute zero |
| Troposphere | the layer of the atmosphere that is capable of supporting life |
| Stratosphere | the layer of the atmosphere that contains the "good ozone" |
| Mesosphere | the layer of the atmosphere in which shooting stars are found |
| Thermosphere | the layer of the atmosphere in which space shuttles orbit |
| Exosphere | the layer of the atmosphere that fades into outer space |
| CFCs | the chemical that destroys our ozone layer |