Across
- 3. the layer that is closest to earth's surface
- 4. the hypothesis that----- have slowly moved to their current location
- 5. the process of liquid changing to a gas
- 7. a key to remembering the 7 steps of the scientific method
- 8. to occur
- 11. three things needed for photosynthesis
- 12. the process in which water gets taken in to the Earth
- 13. measure of the amount of water vapor that air is holding
- 17. what water turns into when it evaporates from oceans and lakes
- 19. after hypothesis we observe and -------
- 21. List the 3 ways in which movement of two blocks of rock along a fault causes an
- 22. a vast underwater mountain chain
Down
- 1. List the 3 things that distinguish atmospheric layers.
- 2. the boundary line between cold and warm air masses
- 6. used to measure temperature
- 9. water freezes at this temperature
- 10. contains the highest level of ozone
- 14. areas that have cloudy weather
- 15. most water is found here
- 16. scientific law describes----- in nature
- 18. what waves are the first to reach the seismograph after an earthquake
- 20. The point in Earth's interior where the energy release of an earthquake occurs is