Across
- 3. All factors remain the same during the experiment.
- 6. The organism that is eaten.
- 8. The principle that life comes only from life.
- 9. Possible explanation for an event or set of observations.
- 11. An organism that kills and eats another organism.
Down
- 1. Involves making predictions, designing an experiment to test those predictions.
- 2. A hypothesis that is "supported" by many experiments over a period of time.
- 4. A factor that can change in an experiment.
- 5. All living things
- 7. Several different types of tissues that function together for a specific purpose.
- 8. The thin layer of air, land and water that is home to all living things on Earth.
- 10. The basic unit of organization.
- 12. Cells working together to perform a specific function.