Across
- 4. main element in organic compounds
- 6. A test that is used to rule out a hypothesis or validate something already known.
- 8. study of energy
- 11. Latin for knowledge
- 12. A solution with a pH higher than 7.
- 15. small amount of energy
- 17. stores energy and forms cell membranes
- 19. is a substance that consists of two or more elements
- 21. is the smallest particle of an element
- 22. the protective blanket of gases
- 24. suggested explanation based on evidence that can be tested by observation or experimentation.
- 27. a pure substance
- 28. Where life operates.
- 29. rate at which energy is used
- 30. unit of power
Down
- 1. Developing new knowledge based upon old knowledge.
- 2. anything that takes up space and has mass.
- 3. done when force is applied to an object over a distance
- 5. concentration of hydronium ions in a solution
- 7. is equal to 746 watts (Another measurement of power)
- 9. A solution with a pH lower than 7
- 10. sum of all the biochemical reactions in an organism
- 13. The study of the interactions between life and its physical environment.
- 14. comprises all types of water resources
- 16. a substance that starts a chemical reaction
- 18. The vast majority of our people directly dependent on the natural resources of their country for their basic needs
- 20. the outer mantle of the solid earth.
- 23. named after James Prescott Joule
- 25. A widely accepted hypothesis that stands the test of time.
- 26. a substance that forms because of a chemical reaction
- 27. the ability to do work