| A | B |
|---|
| Community | All the organisms that live in one habitat |
| Food chain | A group of organisms, each of which is dependent on another for food |
| Recycle | To use something over and over again |
| Ecosystems | A system that is formed by the interaction of a community of organisms and its environment |
| Consumers | Organisms that eat other organisms |
| Solar energy | Energy produced by the sun |
| Habitat | The place where an organism lives |
| Conservation | The wise and careful use of natural resources |
| Decomposers | Organisms that eat dead matter |
| Fossil fuels | Fuel products made from plant and animal remains, such as coal, petroleum, and natural gas |
| Population | The group of one species living in a certain place |
| Producers | Organisms that produce their own food |
| Evaporation | The process by which heat changes water to water vapor |
| Natural resources | Substances found in nature that are useful to humans |
