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Inside the Planet: Earth's Interior and Layers

Use the clues from below to fill in the crossword puzzle. 
Across
_______ rock is formed by the cooling of magma and lava on Earth.
_______ was a supercontinent that scientists believe existed around 200 million years ago, which is when it hypothetically started to divide into the seven continents of today.
The _______ is a semisolid layer of rock that lies in the mantle, directly below the lithosphere, so about 60-90 miles below earth’s crust.
The _______ is a liquid layer of metal -- mostly iron and nickel -- that extends 3000 miles beneath the surface of Earth and creates magnetism in the planet.
The _______ is a theory that suggests the seven continents of Earth move every year. As this theory has been studied more and more, it is believed to be more of a fact than a belief.
____rock is shaped into layers and is formed by rock material being deposited on top of other layers of rock. Layer upon layer is put onto the one before it, compressing the rock together, leaving it to harden and form.
The movement of tectonic plates in the lithosphere may cause an _______ on Earth’s surface.
Down
The ________ is the solid, outermost shell of planet Earth, and it is made up of loose rocks, soil, and seabed. It is 5-25 miles deep into the Earth (it is closer to 5 miles deep below the oceanic crust and closer to 25 miles deep below the continental crust).
_______ is a process in which heat energy is transferred -- causing warm air to rise and cool air to fall. This process occurs in the asthenosphere, which leads to tectonic plate movement.
Earth’s crust is divided into seven main _______ that move every year, causing volcanic eruptions, earthquakes, landslides, and continental drift.
Heat and tension within the Earth cause rock to change from its original form to new -- yet similar -- material, forming _______ rock.
The _______ is a solid physical layer of the earth that is made up of the crust and uppermost rigid rock from the mantle, and reaches a range of about 40-60 miles deep.
_______ are cracks in the Earth that fall along plate tectonics.
The _______ is a scorching hot ball of solid metal -- iron and nickel for the most part -- that is close to 4000 miles deep into the Earth.
The _______ is made up of solid magma, is the planet’s thickest layer, and reaches about 1800 miles deep into the Earth.