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A scientist who studies the nature and origin of the universe.
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The current theory of landmass movement is known as _____ Tectonics.
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Molten rock is known as magma or ____.
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Name given to the original supercontinent 200 million years ago.
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The Earth's core is thought to be made up of iron and ______.
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The boundaries between geological plates are known as _____ lines.
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The Earth's lithosphere rides or floats on the molten part of the ________.
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Huge waves caused by earthquake activity.
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The movement of the Earth's landmasses is known as Continental _____.
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