Across
- 2. is the layer of the atmosphere nearest to Earth's surface.
- 4. acronym for the 7 steps of of the scientific method
- 7. is a measure of the amount of water vapor that air is holding compared to the amount needed for saturation at a specific temperature.
- 9. The boundary between cold and warm air masses is called a
- 11. What process takes rock to the inside of Earth?
- 13. usually has cloudy weather.
- 15. A scientific law describes a
- 16. contains the highest concentration of ozone.
- 17. List the three things necessary for photosynthesis.
- 20. List the 3 things that distinguish atmospheric layers.
- 21. When a scientist has tested her hypothesis, the next step in scientific inquiry is to
Down
- 1. plates move apart here
- 3. The hypothesis that continents have slowly moved to their current locations is called
- 5. List the 3 ways in which movement of two blocks of rock along a fault causes an earthquake to occur
- 6. are the first waves to reach a seismograph after an earthquake.
- 8. device used to measure temperature
- 9. The point in Earth's interior where the energy release of an earthquake occurs
- 10. Most of the freshwater on Earth is found in
- 12. The process of liquid changing to a gas at the surface of the liquid is called
- 14. evaporates from oceans and lakes and rises into Earth's atmosphere as vapor.
- 18. water freezes at this temperature
- 19. a vast underwater mountain chain