Across
- 2. Group of individuals of the same species that live together in the same area at the same time
- 6. carbon dioxide
- 7. The measurable effect, outcome, or response in which the research is interested.
- 8. The study of the natural processes that occur in the environment and how humans can affect them.
- 12. The study of the interactions between living things and their environment
- 13. A measure of how difficult it is to stretch or break the surface of a liquid
- 16. organism that feeds on plant and animal remains and other dead matter
- 18. (adenosine triphosphate) main energy source that cells use for most of their work
- 19. A consumer that eats only plants.
Down
- 1. Coal, oil, natural gas, and other fuels that are ancient remains of plants and animals.
- 3. The experimental factor that is manipulated; the variable whose effect is being studied.
- 4. Data in the form of words
- 5. made up of monosaccharides like glucose
- 6. An organism that eats producers or other organisms for energy
- 9. An attraction between molecules of different substances
- 10. Data that is in numbers
- 11. Conditions that stay the same in the experiment
- 14. A typical star that is the source of light and heat for the planets in the solar system.
- 15. Part of the environment that includes all of the living organisms that live and interact with one another
- 17. Attraction between molecules of the same substance