Across
- 1. The science that studies Earth
- 5. Scientist who believes that the continents were once joined as a large landmass.
- 7. A boundary in which two plates move toward each other.
- 10. An event in which a plate moves beneath another plate.
- 14. Vibration of Earth due to the rapid release of energy
- 16. A current in the mantle because of the heat from the inner layers of the Earth.
- 19. Plate ___________ is a theory which suggests that the plates are moving slowly but constantly.
- 20. A type of body wave which travels quickly through liquids.
- 22. A method used to hypothetically determine the epicenter of an earthquake.
- 24. A boundary existing between the core and the mantle.
- 25. Consists of the crust and the upper mantle.
- 28. A boundary produced when two plates slide past each other.
- 30. Arc Formed on the surface of an oceanic plate when it collides with another oceanic plate.
- 31. A fossil plant which supports the idea that the continents were once joined.
- 33. A solid layer made up of iron and nickel is the ____________ core.
- 34. A series of ocean waves with very long wavelengths caused by large-scale disturbances of the ocean.
- 35. A kit which can help people to survive for a few days after a calamity.
- 36. A term which means “entire earth”.
- 37. An evidence which supports Continental Drift Theory focusing on past climate data of the continents.
- 39. Rigid sections of the lithosphere that move as a unit
- 40. A discovery which explains how continents move is the ___________ spreading.
- 44. Preserved remains or traces of organisms (plants and animals) from the remote past.
- 46. The outer layer of the earth.
- 47. Spot A concentration of heat in the mantle capable of creating magma
Down
- 2. A crust which is thinner and is found under oceans
- 3. Ridge Develop when divergent boundaries are situated along underwater mountains.
- 4. The inner core remains solid because of _________ freezing.
- 6. A crust which is thicker and found under landforms.
- 8. A boundary existing between crust and mantle.
- 9. One evidence which supports Continental Drift Theory is ______ and Mountain Correlation.
- 11. A liquid layer made up of iron and nickel is the _____________ core.
- 12. A reptile whose fossils were found on South America and Africa and supports the Continental Drift Theory.
- 13. A boundary in which two plates move away from each other.
- 15. A type of seismic waves which travels through the layers of the earth.
- 17. A depression in the seafloor produced by subduction process
- 18. A soft, weak upper portion of the mantle where the lithospheric plates float and move around.
- 21. A mass of molten rock formed at depth, including dissolved gases and crystals
- 23. A type of body wave which travels slower through solids.
- 25. The continental crust and _____ dense than the oceanic crust.
- 26. A point in the surface of the Earth directly above the focus of an earthquake.
- 27. A geologic formation when two continental plates collide.
- 29. Valley Develop when spreading center develops within a continent.
- 32. A device used to record earthquake waves.
- 36. According to Wegener edges of the continents fits like a _________.
- 38. Arc Formed on the surface when a continental plate collides with an oceanic plate
- 40. The energy from an earthquake radiates in all directions from the focus in the form of waves called _____ waves
- 41. A scientist who supports the idea that the continents were once a large landmass.
- 42. Continental ______ Theory states that the continents were once a large landmass.
- 43. A break in a rock along which movement has occurred.
- 45. The most abundant element in the crust.