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Plate Techtonics

Elisa Deras

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Across
1.The result of a sudden release of energy in the Earth's crust that creates seismic waves
4.Who came up with sea floor spreading?
8.The ____________ Cycle is the continuous movement of water on, above, & below the surface of the Earth.
10.The scientific study of the Earth's climate over long time spans.
12.Who was the first person who calculated the circumfrance of the Earth?
13.One of the most deadliest gases emitted by volcanoes.
14.A ________ flow is a fast-moving current of super heated gas & rock.
18.Discovered the Earth was round.
19.Solid portion of the earth.
20.A series of water waves caused by the displacement of a large volume of a body of water, typically an ocean or a large lake.
Down
2.A process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity & then gradually moves away from the ridge.
3.Scientists use these waves to measure the earths core.
5.A scientific theory that describes the large-scale motions of Earth's lithosphere.
6.The fault line in California.
7.Who came up with "Pangaea" ?
9.A volcano capable of producing a volcanic eruption with a volume greater than 1,000 km squared.
11.Which national park can you find one of the largest super volcanoes?
15.The Super Continent was named _______ .
16.The science that studies the lands.
17.Long time averages of temperature & rainfall determine the _______ of an area.

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