Environmental Science

5. A theory is a well-substantiated explanation of an aspect of the natural world that can incorporate laws, hypotheses and facts
6. one in which the subject or a group would not be tested for the dependent variable(s)
8. a quantity that, under stated conditions, does not vary with changes in the environment
9. the variety of life in the world or in a particular habitat or ecosystem.
13. materials created in nature that are used and usable by humans.
14. energy sources that human society uses to function on a daily basis.

1. an idea that proposes a tentative explanation about a phenomenon or a narrow set of phenomena observed in the natural world
2. a description, often in the form of a mathematical formula, of the behavior of an aspect of nature under certain circumstances.
3. It is something that depends on other factors.
4. It is a variable that stands alone and isn't changed by the other variables you are trying to measure
7. an energy source that cannot be depleted and are able to supply a continuous source of clean energy.
10. managing and protecting Earth's natural resources, ecosystems, climate and atmosphere so that current generations and future generations will have the things they need
11. a scientific test in which you perform a series of actions and carefully observe their effects in order to learn about something.
12. the introduction of harmful materials into the environment.