Earth Layers Crossword Puzzle Printable and Free – 7th Grade
Earth Layers Crossword Puzzle covers the following terms:
crust – The layer of rock that forms Earth’s outer surface.
mantle – The layer of hot, solid material between Earth’s crust and core.
outer core – A layer of molten iron and nickel that surrounds the inner core of Earth.
inner core – A dense sphere of solid iron and nickel at the center of Earth.
lithosphere – A rigid layer made up of the uppermost part of the mantle and the crust.
asthenosphere – The soft layer of the mantle on which the lithosphere floats.
basalt – A dark, dense, igneous rock with a fine texture, found in oceanic crust.
granite – A usually light-colored igneous rock that is found in continental crust.
tectonic plates – Sections of the Earth’s crust that move due to convection currents.
continental crust – The portion of the earth’s crust that primarily contains granite.
oceanic crust – The portion of Earth’s crust that is usually below the oceans.
convection currents – Circular currents in the mantle caused by the magma being heated by the core off the Earth.
temperature – A measure of how hot or cold something is.
pressure – The force exerted on a surface divided by the total area over which the force is exerted.
seismic waves – vibrations that travel through Earth carrying the energy released during an earthquake.
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Earth Layers Study Sheet
Earth Layers Crossword Puzzle
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