3.2 Vocabulary
Rock Identification
Mystery Mix
100
This type of rock forms when molten rock cools and becomes a solid.
What is igneous rock?
100
A common intrusive igneous rock commonly used for countertops.
What is granite?
100
The most common group of minerals in Earth’s crust.
What are silicates?
200
Molten rock on Earth's surface is called______.
What is lava?
200
A rock with large crystals would be an (intrusive/extrusive)igneous rock.
What is intrusive?
200
The main rock on the ocean floor.
What is basalt?
300
Molten rock beneath Earth's surface is called ______.
What is magma?
300
A rock with small crystals would be an (intrusive/extrusive)igneous rock.
What is extrusive?
300
A common extrusive igneous rock is ______.
What is basalt, pumice, gabbro or rhyolite?
400
___________ igneous rock is a rock that forms when magma cools within Earth.
What is intrusive?
400
Magma that cools slowly will form intrusive igneous rocks that have (large crystals/small crystals).
What are large crystals?
400
The main rock of the ocean floor.
What is basalt?
500
___________ igneous rock a rock that forms when lava cools on Earth’s surface.
What is extrusive?
500
Lava that cools quickly will form extrusive igneous rocks that have (large crystals/small crystals).
What are small crystals?
500
Bonus***** Granite, rhyolite, and pumice have the same composition, but look very different because_____________________ ______________________.
Answer should include: Granite: intrusive igneous rock, slow cooling time produced large crystals Rhyolite:began cooling within Earth producing large/medium sized crystals and then rose to the surface and cooled quickly producing small crystals (extrusive) Pumice:extrusive igneous rock, fast cooling time produced small crystals
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