| Term | Definition |
| Agricultural | Relating to cultivating soil, producing food crops or raising livestock |
| Conservation | The careful preservation or protection of something; the planned use of natural resources to prevent their destruction |
| Consumer | An organism that consumes, or eats other organisms; many animals are consumers who eat plants ans/or other animals |
| Decomposer | A type of consumer that gets its nutrients by breaking down other organisms' dead and waste matter into simple parts that are then returned to the soil. |
| Ecosystem | The particular combination of factors in an environment that allow individuals of each type of species to live, grow and reproduce. |
| Food Chain | A group of organisms that pass energy and nutrients from one organism to another and back into the soil; foodchains are made of one or more producers, consumers and decomposers. |
| Habitat | An environment where an organism normally lives. |
| Nonrenewable | Relating to resources that cannot be restored. |
| Pesticides | Chemicals or other substances used to destroy animal and plant pests such as insects, bacteria and fungi |
| Producer | An organism that produces, or makes, its own food; most plants are producers |
| Recycling | The process by which resources or materials are put through a series of treatments in order to be used again. |
| Smog | A form of air pollution that looks like a mix of smoke and fog |
| Toxic | Poisonous |
| Conservation | Preservation of the world's natural resources |
| Naturalist | Someone who studies nature |