| Term | Definition |
| habitat | The place where an animal or plant naturally lives or grows and that provides them with everything they need to survive. |
| Decomposer | Organisms such as fungi and bacteria that break down animal and plant matter into nutrients. |
| Scavenger | any animal that feeds on "left-overs" and other decaying organic matter |
| Carnivore | A meat-eating animal |
| Herbivore | A plant-eating animal |
| Omnivore | An animal that eats both plants and animals |
| Producer | a living thnig that can make its own food, such as a plant. |
| Consumer | organisms that obtain food by eating other organisms |
| Predator | animal that hunts and eats other animals |
| Prey | animal hunted or caught for food |
| Food chain | A hierarchy of organisms where each feeds on those below and is the source of food for those above. |
| Food web | How plants and animals in a habitat connect through their food. |
| Nutrient | The special elements found in food that animals and plants need to survive. |
| Photosynthesis | The process that occurs when plants use chlorophyll and sunlight to convert water and carbon dioxide into food. |
| Population | a group of organisms of the same species populating a given area |
| Community | a group of organisms inhabiting the same region and interacting with each other |
| Endangered | when there are so few of a species that it is in danger of dying out (becoming extinct) |
| Extinct | a species or arganism that is no longer around and have all died out. |
| Hypothesis | a prediction or guess that can be tested |
| Scientific Investigation | A set of procedures scientists use when conducting a scientific inquiry |
| Conclusion | a summary of the results of the experiment and a statement of how the results relate to the hypothesis |
| Adaptation | trait of a living thing that helps it live in its environment |