Plate Tectonics Crossword
Across
- 3. the outer layer of the Earth, between the surface and the mantle
- 5. the assembly of most or all of the Earth's continental blocks to form a single large landmass
- 8. ground that is permanently frozen
- 9. a pressing or being pressed
- 10. a mechanism for plate motion in plate tectonics
- 13. the earth's interior between the crust and the core
- 14. the vertical transport of atmospheric properties
- 15. a long narrow excavation in the ground
- 18. the outer part of the earth
- 19. a crack in the earth's surface where there has been movement of one or both sides
- 20. valley a long narrow valley
Down
- 1. the upper layer of the earth's mantle
- 2. where lava comes from
- 4. the movement of tectonic plate lithosphere from the convection currents in the asthenosphere
- 6. the boundary between the plates
- 7. a measure of the warmth or coldness
- 11. a location on the Earth's surface that has experienced active volcanism
- 12. a measure of mass per unit of volume
- 16. opposite of cold
- 17. the point on the earth's surface vertically above the focus of an earthquake