earth and rocks
- Created by: Laylawheeldon
- Created on: 23-03-14 18:29
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- EARTH & ROCKS
- igneous rocks
- examples
- granite
- basalt
- Pressure can force magma out of the ground. This creates a volcano. When the magma cools it turns into solid rock, called extrusive igneous rock
- Magma that cools underground forms solid rock called intrusive igneous rock
- examples
- sedimentary rocks
- examples
- limestone
- chalk
- sandstone
- Compaction and cementation presses the layers and sticks the particles together
- examples
- Metamorphic rocks
- examples
- slate
- marble
- Rocks underground that get heated and put under pressure are changed into metamorphic rock
- examples
- weathering
- Definition: wearing away the rocks
- slow flowing rivers transoprt small rocks eroding them on the way
- fast flowing rivers can trasport large rock eroding them on the way
- waves erode cliffs and cause the cliffs to crumble and break
- biological weathering is when animal burrow between cracks in the rock and cause other rocks to fall
- biological weathering
- physical weathering
- Physical weathering is caused by physical changes such as changes in temperature, freezing and thawing, and the effects of wind, rain and waves
- biological weathering
- chemical weathering
- Rainwater is naturally slightly acidic. Minerals in rocks may react with the rainwater, causing the rock to be weathered
- weathering
- Definition: wearing away the rocks
- slow flowing rivers transoprt small rocks eroding them on the way
- fast flowing rivers can trasport large rock eroding them on the way
- waves erode cliffs and cause the cliffs to crumble and break
- biological weathering is when animal burrow between cracks in the rock and cause other rocks to fall
- physical weathering
- Physical weathering is caused by physical changes such as changes in temperature, freezing and thawing, and the effects of wind, rain and waves
- chemical weathering
- Rainwater is naturally slightly acidic. Minerals in rocks may react with the rainwater, causing the rock to be weathered
- Rainwater is naturally slightly acidic. Minerals in rocks may react with the rainwater, causing the rock to be weathered
- weathering
- Rainwater is naturally slightly acidic. Minerals in rocks may react with the rainwater, causing the rock to be weathered
- igneous rocks
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