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Rocks

n.sharp Inglés 17 fichas

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1Give an example of Sedimentary RocksSandstone
Mudstone
2Give an example of Igneous RockBasalt-Extrusive
Granite-Intruisve
3What happens during compaction in a Sedimentary Rock?Water is squeezed out from between the grains in a sediment.
4Are Sedimentary Rocks porous or not porous?Porous
5Igneous rocks are formed... (Finish off sentence)when molten rock cools.
6Igneous rocks are made up of what?Interlocking crystals.
7Igneous Rocks If cooling is fast are the crystals big or small?Small
8Igneous Rocks If cooling is slow are the crystals big or small?Big
9Give an example of metamorphic rockSlate
Marble
Schist
10metamorphic rocks are formed the action of what two things?Heat and pressure
(on existing rocks over long periods of time)
11Earths Movements push all types of rock where?Deep Underground.
12(Metamorphic Rock) What happens to the rock deep underground?It is compressed and heated,
(The mineral structure and texture may change)
13(Metamorphic Rock) If the rock melts what happens?It turns into magma and is gone. The magma may resurface as igneous rock.
14What does metamorphism mean?Changing Form
15Give two examples of physical weathering.Freeze-thaw
Exfoliation
16What is physical weathering caused by?The effects of changing temperature on rocks,.(This causes them to break apart)
17chemical weathering is caused by what?Rain water reacting with mineral grains in a roc to from new minerals and soluble salts.