Across
- 2. Responsible for trapping the sunlight energy needed in the process of photosynthesis.
- 4. Energy stored in molecules and chemical compounds.
- 6. Focuses on the Earth's athmosphere and its interrelational to the other systems.
- 7. Study of energy
- 10. Outer mantle of the solid Earth.
- 12. Charged particle
- 13. Science is a __________ for developing knowledge.
- 17. Positive charge particle
- 18. Substance that alters the rate at a reaction but does not undergo any permanent chemical change.
- 19. Energy that comes from the temperature of the heated substance.
- 20. Central characteristic of the scientific method.
- 23. It means knowledge
- 24. The study of the interactions between life and its physical environment.
- 26. A widely accepted, plausible generalization about fundamental concepts in science that explains why things happen.
- 29. Negative charge particle
- 30. Membrane-enclosed organelle within a cell that contains chromosomes.
Down
- 1. A common method for testing a hypothesis.
- 3. A statement that provides a possible answer.
- 5. A protein molecule that regulates chemical reactions in living things.
- 8. Depletion of resources and extinction of life.
- 9. Determine the variable character of the human habitat, its opportunities as well as limitations.
- 11. Occurs when we use our senses or an extension of our senses to record an event.
- 14. Scientific _____________ is a way if gaining information (facts).
- 15. Scientific __________________ examine, gain new knowledge or build previous knowledge about phenomena.
- 16. Smallest particle of an element
- 21. Uncharged particle
- 22. A substance that can not be broken down into other substance.
- 25. When an object is moved over a distance.
- 27. Philiosophy of the natural world.
- 28. Ability to do work.