Across
- 5. Environmental geology.
- 7. is the main element in organic compounds.
- 8. The process of scientific investigation.
- 12. comprises all types of water resources.
- 15. is anything that takes up space and has mass.
- 17. the outer mantle of the solid earth.
- 21. the sum of all the biochemical reactions in an organism.
- 22. study of microscopic organisms.
- 23. is the ability to do work.
- 24. A test that is used to rule out a hypothesis.
- 25. the concentration of hydronium ions in a solution.
- 26. is done when force is applied to an object over a distance.
- 27. A suggested explanation based on evidence that can be tested by observation.
- 28. The study of the interactions between life and its physical environment.
- 30. study of plant/life.
Down
- 1. is a substance that consists of two or more elements.
- 2. the protective blanket of gases surrounding the Earth.
- 3. a substance that forms because of a chemical reaction.
- 4. study of life and living organisms, their life cycles, adaptations, and environment.
- 6. is the rate at which energy is used.
- 9. the study of inanimate natural objects.
- 10. Stored energy that depends upon the relative position of various parts of a system.
- 11. is the study of energy.
- 13. is a pure substance.
- 14. study of atmosphere and weather patterns.
- 16. a substance that starts a chemical reaction.
- 18. A widely accepted hypothesis that stands the test of time.
- 19. Where life operates.
- 20. the energy that it possesses due to its motion.
- 29. is the smallest particle of an element that still has the properties of that element.