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15
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Minerals that have a perfect geometrical shape are called _______.
crystals
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The outer layer of the Earth. It's made of rocks.
crust
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heart
Other team wins 20 points!
Oops!
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magnet
Take 15 points!
Okay!
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rocket
Go to first place!
Okay!
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thief
Give points!
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The minerals in the rock.
composition
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Rocks formed when different materials are deposited in the same place. These rocks are usually found in layers.
sedimentary
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The middle of layer of the Earth. It is made of rocks.
mantle
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The colour of a mineral when it is a powder.
streak
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Rocks that have changed over time because of extreme pressure or heat.
metamorphic
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eraser
Reset score!
Oops!
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star
Double points!
Okay!
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shark
Other team loses 20 points!
Okay!
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thief
Give points!
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The inner layer of the Earth. It is made up of metals.
core
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boom
Lose 50 points!
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magnet
Take 10 points!
Okay!
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rocket
Go to first place!
Okay!
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thief
Give points!
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25
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Weight of a mineral
density
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The shape of the grains in a rock.
texture
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The grains of most minerals have an irregular _____. Some are arranged in sheets, others are perfectly geometrical.
shape
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How easy it is to scratch the surface of a mineral.
hardness
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Where the rock is found and what it looks like.
appearance in nature
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