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Learning About Mother Earth

Jacob Hunter

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Across
2.a method for detecting objects submerged in water by echolocation
7.dense igneous rock of lava
8.direct heat transfer
9.caused by plate-tectonic forces
12.shapes the surface by building up landmasses
13.top layer of earth
14.any remains,or trace of a living thing of a former geologic age
16.a person who studies the earth
19.landmass that existed when all continents were joined
20.the crust and upper mantle of the earth.
Down
1.heat transfer threw water
3.processes that break down the Earth
4.heat transfer threw air
5.a wave of energy that is generated by an earthquake
6.one of the main landmasses of the globe
10.the region below the lithosphere
11.the exertion of force upon a surface by an object
15.a coarse-grained igneous rock
17.between the crust and the core
18.mineral matter of variable composition

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