| A | B |
|---|
| Transpiration | Water is released through leaves in this process |
| Water Cycle | The constant movement of water among Earth's land, seas and air |
| Evaporation | Water changes form liquid form to water vapor |
| Condensation | Water Vapor reaches cooler temperatures and changes into a liquid |
| Cell respiration | Using oxygen to break down carbon compounds and release energy in the carbon cycle |
| Proteins | Compounds that are essential to control the chemical processes that take place in the human body. |
| Bacteria | Microscopic organisms that help "fix" nitrogen |
| Legumes | Soybeans, peas and clover are examples of this type of plant used in the nitrogen cycle |
| Nitrogen | 78% of the Earth's atmosphere is made of this element |
| Nodules | Small bumps on the roots of legumes that hold nitrogen-fixing bacteria |
| "Fix" | A process in which nitrogen is changed into compounds so it can be used by plants and animals |
