| Term | Definition |
| photosynthesis | the process by which green plants use sunlight to change water and carbon dioxide into sugar |
| botany | the scientific study of plants |
| chlorophyll | the green substance found in green plants which enables them to make their own food |
| embryo | a tiny plant inside a seed |
| pollination | the moving of pollen to the pistals of flowers by wind or insects |
| germinate | to sprout |
| conifer | a cone bearing tree |
| deciduous | a name for trees which lose their leaves every year |
| lichen | a mosslike plant that grows on trees and rocks |
| liken | to compare similarities |