| A | B |
| climate | average weather conditions in an area over many years (at least 30) |
| infrared radiation | energy with a wavelength longer than the wavelength of light |
| greenhouse gases | carbon dioxide, water vapor, and other gases in the atmosphere that absorb infrared radiation from the earth's surface |
| greenhouse effect | the process by which gases in the atmosphere absorb heat and keep the earth warm |
| ultraviolet radiation | energy with a wavelength shorter than the wavelength of light |
| rotation | the way a plant moves on its axis - reason for day and night |
| revolution | the orbit a planet makes around the sun - reason for the seasons |
| weather | the day to day conditions of the atmosphere |
| axis | the invisible line drawn between the north and south poles of a planet |