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What are the 3 main types of rock?
Where can I find the names of the 3 most common types of rock? What are the characteristics of each type of rock? What does each type of rock tell us about the environment?
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There are 3 types of rock that account for all rocks. The first is igneous rock. These rocks are made up of crystals formed by cooling magma. Magma is the molten core of the earth. The earth is made up of magma and igneous rock. Granite is an example of an igneous rock.
The second type of rock is called sedimentary rock. Loose sediment and debris gets compacted and squished together. It forms clumps of rock and those clumps are known as sedimentary rocks. These rocks are also known as secondary rocks because they are often made up of pieces of other rock. Sedimentary rock can contain little bits of igneous or metamorphic rock, sand, vegetation, teeth, bone, shell, salt, etc. They’re kind of a hodge-podge rock.
The third type of rock is known as metamorphic rocks. ‘Meta’ means change and ‘morph’ means form, so you can remember that these are rocks that change form. This happens when a rock or mineral is put in a different environment with different conditions that force them to become something else. For example, if you bury a rock, it will be under more pressure than before it was buried. A rise in pressure accompanies a rise in heat. Chemicals can also be used to cause a change. Some exampled of metamorphic rock includes slate and marble.
The second type of rock is called sedimentary rock. Loose sediment and debris gets compacted and squished together. It forms clumps of rock and those clumps are known as sedimentary rocks. These rocks are also known as secondary rocks because they are often made up of pieces of other rock. Sedimentary rock can contain little bits of igneous or metamorphic rock, sand, vegetation, teeth, bone, shell, salt, etc. They’re kind of a hodge-podge rock.
The third type of rock is known as metamorphic rocks. ‘Meta’ means change and ‘morph’ means form, so you can remember that these are rocks that change form. This happens when a rock or mineral is put in a different environment with different conditions that force them to become something else. For example, if you bury a rock, it will be under more pressure than before it was buried. A rise in pressure accompanies a rise in heat. Chemicals can also be used to cause a change. Some exampled of metamorphic rock includes slate and marble.
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