Across
- 1. spot when magma flows through a crack in the middle of a tectonic plate, not at a plate boundry. Hawaiian islands were formedthis way
- 4. is the movement caused within fluid when the hotter, less dense material rises, and colder, denser material sinks.
- 5. the innermost layer of the earth, divided into 2 parts liquid outer and solid inner. made of nickle andiron divergent boundary where tectonic plates divide
- 7. a sudden release of energy in the listhophere creates seismic waves
- 8. group of animals that occupy a certain area
- 9. study of earthquakes and related phenomena
- 10. a tool that measures the details of earthquakes
- 13. from pre-existing rocks into fossils
- 14. boundary where tectonic plates collide
- 16. large pieces of lithosphere that the ocean and contants rest on
- 18. still in existence, surviving species
- 22. water held underground in the soil in deep reservoirs
- 26. forms under extreme heat and pressure
- 27. the lower part of earth's mantle, below the asthenosphere
- 29. forms when molten rock crystallizes and solidifies. appears glassy
Down
- 2. boundary where the tectonic plates slide past each other
- 3. form at convergent boundries where one plate subducts under another and magma undergrouned
- 5. the solid, outermost layer of the earth
- 6. supercontinent that existed before continents separed
- 11. a solid inorganic material found in a nature
- 12. compress or squeeze through solids and liquids. faster than s waves
- 15. lies between the crust and core
- 17. no longer existence
- 19. is the study of the earth
- 20. the outer part of the earth
- 21. fuel petroleum, natural gas, coal. made from remains of plants and animals.
- 23. below the lithosphere. the hotter and more fluid part of the mental
- 24. cycle when heat pressure, cooling, melting, and weathering cause rocks to change from one type to another over time.
- 25. spreading occurs when divergent plates seperate.
- 28. move side to side through ONLY solids. slower than p waves