Across
- 1. a measure of the size of a surface or a region.
- 2. the change of a substance from a liquid to a gas.
- 4. the process of creating technology.
- 8. an organism that eats both plants and animals.
- 9. the time reqiurd for earth to rotate once on its axis.
- 12. the movement of air caused by differences in air pressure.
- 15. an instrument used to measure wind speed.
- 16. the process of obtaining information by using the senses.
- 17. the basic unit of length in the si.
- 19. a material in which charges cannot move freely.
- 20. a series of stops that followed to solve problems.
- 23. the kinetic energy of a substances atoms.
- 24. the burning of a substance.
- 27. the transfer of energy as electromagnetic waves.
- 28. the part of earth where life exist.
- 29. a large reddish star, late in its life cycle.
Down
- 1. the brightness of a star as seen from the earth.
- 3. describes living factors in the environment.
- 5. the release of electricity stored in a source.
- 6. the charge of state from a gas to a liquid.
- 7. an organism that eats animals.
- 10. a gradual increase in average global temperature.
- 11. a material in which charges can move freely.
- 13. the capacity to do work.
- 14. an instrument that measures atmospheric pressure.
- 18. a measure of the amount of matter in an object.
- 21. an organism that eats only plants.
- 22. a mixture of gases that surrounds a planet or moon.
- 25. the amount of water vapor in the air.
- 26. the bubbles in the crest of a breaking wave.