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15
×
Igneous rock is formed when ________________.
Magma cools and becomes solid
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15
×
Oops!
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15
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Gemstones, such as rubies and emeralds, are used to make jewelry. Rubies and emeralds are both __________________.
Minerals
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15
×
A rock is made of how many substances?
2 or more
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thief
Give points!
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25
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rocket
Go to first place!
Okay!
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fairy
Take points!
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25
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thief
Give points!
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25
15
×
Give one example of an igneous rock:
Granite
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15
×
Unpaved roads are often covered with gravel, which is small chunks of rock. What are two reasons gravel might be used on roads?
Gravel is hard and safe to drive on. The dirt underneath gravel is soft and breaks apart easily, making driving unsafe.
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15
×
Sedimentary rock is formed when ___________________.
Layers of sediment, or dirt, settles at the bottom of a lake or ocean and the water puts pressure on the dirt, squeezing the layers together.
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15
×
Some buildings- especially old buildings- are made from blocks of rock. Give one advantage and one disadvantage of building with blocks of rock.
Stone crumbles as it ages, but it takes a long time to wear down.
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15
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Metamorphic rock is made when ______________________.
Sedimentary or igneous rock is changed by pressure, heat, or both.
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15
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Some rocks can be all one color (like most minerals) because _____________________.
All of the substances mix together, making them all one color
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15
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What are two characteristics of rubies and emeralds that make them beautiful?
Their luster and their connection with our culture
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seesaw
Swap points!
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shark
Other team loses 20 points!
Okay!
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shark
Other team loses 25 points!
Okay!
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thief
Give points!
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25
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boom
Lose 50 points!
Oops!
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magnet
Take 25 points!
Okay!
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fairy
Take points!
5
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25
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lifesaver
Give 10 points!
Oops!
15
×
Glass is made from the mineral _____________.
Quartz
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15
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A mineral is made of how many substances?
One
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