Across
- 2. clear sky when the sky has no clouds
- 5. Crest the highest height that the river reaches during a flood event
- 9. pollution chemicals in the atmosphere that is harmful to living things
- 10. is an instrument that measures air pressure
- 11. a line connecting equal points of pressure
- 13. A water substance in the solid form
- 14. an instrument that measures wind speed
Down
- 1. The shaking of a portion of the earth surface
- 3. Precipitation in the form of balls or clumps of ice
- 4. light wind
- 5. frozen body tissue
- 6. light rain consisting of water drops that are very small
- 7. is a violently rotating column of air in contact with the ground and extending to the thunderstorm base, often seen extending from near the wall cloud. It can be a few yards across to a mile wide
- 8. is the third planet from the sun
- 12. The mixtures of gases