| Term | Definition |
| xylem | The tubes that carry water from the roots to other parts of the plant |
| phleom | The tubes that take food made by the plant to other parts of the plant. |
| photosynthesis | The process used by plants to make their own food. |
| chlorophyll | The green pigment found in plant cells that assist them in photosynthesis. |
| spore | A single reproductive cell that grows into a plant. |
| gymnosperm | A plant with unprotected seeds like a conifer tree. |
| pollen | Flower structures that contain male reproductive cells. |
| angiosperm | A flowering plant. |
| germinate | The sprouting of a seed. |
| grain | The seed of certain grasses. |
| fiber | Any material that can be separated into threads. |