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A Lesson 6
4th grade Science
| Question | Answer |
|---|---|
| chlorophyll | a green substance in plant cells that helps plants make food by trapping the sun's energy. |
| epidermis | the outermost protective layer of a leaf. |
| respiration | the using and releasing of energy en a cell. |
| root hair | one of the threadlike cells on a root that take in water and minerals from the soil. |
| photosynthesis | a process in plants that uses energy from sunlight to make food from water and carbon dioxide. |
| stomata | pores in the bottom of leaves that open and close to let in air or give of water vapor. |
| transpiration | a plants release of excess water vapor through stomata on the underside of it's leaves. |