Across
- 2. The study of the interactions between lifeand its physical environment.
- 6. Is a common chemical substance on planet Earth
- 7. Is the smallest particle of an element
- 8. The act of noting or detecting phenomenon by the senses.
- 9. Where life operates.
- 11. It means knowledge.
- 12. Is a pure substance
- 15. Comprises all types of water resources
- 16. The protective blanket of gases surrounding the Earth.
- 17. A substance that forms as a result of a chemical reaction
- 19. Is the main element in organic compounds
- 21. Is the rate at which energy is used
- 23. A solution with a pH higher than 7
- 25. Is a substance that consists of two or more elements
- 26. Is the ability to do work
- 27. An energy that possesses due to its motion
- 28. The outer mantle of the solid earth.
- 29. It is the unit of power
Down
- 1. An energy that depends upon the relative position of various parts of a system
- 3. The sum of all biochemical reactions in an organism
- 4. Developing new knowledge based upon old knowledge.
- 5. Is anything that takes up space and has mass
- 10. Is a key cultural aspect that is embedded in people’s way. of life.
- 11. It is a systematic body of knowledge.
- 13. Is the study of energy
- 14. A substance that starts a chemical reaction
- 18. A widely accepted hypothesis that stands the test of time.
- 20. A test that is used to rule out a hypothesis or validate something already known.
- 22. Is done when force is applied to an object over a distance
- 24. A solution with a pH lower than 7