Across
- 2. This cloud brings continuous rain or snow.
- 5. Structure used to extract groundwater.
- 7. Field Field produced by Earth’s core, shielding it from radiation.
- 9. Layer beneath the crust, made of semi-solid rock.
- 10. Huge slow-moving body of ice on land.
- 14. Study of minerals.
- 16. Earth system made of frozen water.
- 17. Major gas in the atmosphere making up 78%.
- 20. Gases in the upper atmosphere that block UV radiation.
- 22. Largest body of water on Earth.
- 24. This layer contains the ozone layer.
- 25. Theory of solar system formation involving violent dust collisions.
- 26. The leading explanation for the origin of the universe.
- 28. Layer of atmosphere where weather happens.
- 29. Decayed organic matter in soil.
- 30. Atmospheric layer that reflects radio waves and causes auroras.
Down
- 1. Rock-forming structure that has a definite chemical composition.
- 3. Light behavior that causes blue skies.
- 4. Layer where most meteors burn up.
- 6. Proposed the Big Bang Theory.
- 8. Atmospheric phenomenon that traps heat and keeps Earth warm.
- 11. Temporary increase in lower atmospheric temperature with altitude.
- 12. Naturally occurring solid aggregate of minerals.
- 13. Theory that explains galaxies are moving apart.
- 15. The mixture of clay, sand, and silt, ideal for growing crops.
- 18. Cycle describing how rocks change from one type to another.
- 19. Water found beneath Earth’s surface.
- 21. Plants use this gas for photosynthesis.
- 23. Hardest known mineral on the Mohs scale.
- 27. Outermost layer of the atmosphere.