What is magma called when it is pushed out into the air, for example through a volcano?
lava
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25
Explain how the rock cycle works.
Rocks can change back and forth between the different types. Answers will vary.
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15
What are two examples of chemical weathering?
A rusty piece of metal; Stalagmites and stalactites in a limestone cave; etc.
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15
This sphere is the earth itself. It also includes events such as volcanoes and earthquakes.
geopshere
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boom
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gold
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gift
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banana
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monster
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fairy
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gift
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lifesaver
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15
What is the core of the earth?
The inner layer of the earth
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15
The imaginary line that goes through the center of the earth.
axis
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15
What are sedimentary rocks?
Rocks that form when sediment makes layers and the layers are pressed together.
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baam
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fairy
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banana
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15
What is the sphere that consists of all the life on Earth?
biosphere
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15
What is weathering?
When Earth's crust is broken down. It changes the sizes and shapes of the material in the crust.
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20
Explain how days occur on Earth.
The earth revolves around its own axis. The side facing the sun has day. The opposite side has night.
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20
Lava or magma can cool quickly or slowly to form igneous rocks. How does this affect the rocks that are formed?
When it cools slowly the crystals are larger. When it cools quickly the crystals are smaller.
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rocket
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20
What is the difference between weathering and erosion?
Weathering breaks down the materials in the earth's crust without movement. Erosion carries the materials away to other parts, for example by wind or water.
