Earth Science
Across
- 4. the leaves of a tree
- 5. what is a naturally occurring and coherent aggregate of one or more minerals.
- 7. a u shaped valley formed by large blocks of ice
- 8. where a river meets the ocean
- 11. what is the name for the interaction of plates moving on the mantle
- 13. two plates move toward each other
- 15. a fracture or zone of fractures between to plates
- 16. gasses that make the atmosphere heat up
- 17. what is a naturally occurring substance with distinctive chemical and physical properties, composition and atomic structure
Down
- 1. the downward movement of the edge of a plate into the mantle
- 2. the percentage of void space in a material, such as soil or rock
- 3. non renewable energy source like gasoline
- 6. a rupture in the Earth's crust that allows lava, ash, and gases to escape from a magma chamber below the surface
- 9. a fluid's resistance to flowing.
- 10. when two plates move away form each other
- 12. a sudden, violent shaking of the Earth's surface that occurs when two tectonic plates move past each other along a fault line
- 14. where streams come together to form a river