| A | B |
|---|
| Main Idea | Most plants have roots, stems, and leaves. Each part does a special job to keep a plant alive. |
| structure | a part of an organism |
| root | a plant structure that takes in water and nutrients and holds a plant in place |
| nutrient | a substance that living things need to grow and stay healthy |
| stem | a plant structure that holds a plant up and helps leaves reach sunlight |
| leaf | the plant structure where a plant makes food |
| photosynthesis | the process through which plants make food |
| chlorophyll | a substance inside a plant's cells that gives leaves their green color |
| sunlight | soaks into leaves and provides energy |
| carbon dioxide | flows into holes in leaves |
| water and nutrients | flow up from the roots through the stem to the leaves |
| oxygen | flows from the leaves as plants make food |
| food | made inside the leaves travels to the rest of the plant |
| flowering plant | plants that make flowers (cherry tree, prickly pear cactus, squash plant) |
| nonflowering plant | plants that do not make flowers (ginkgo tree, yew tree, juniper tree) |
