Virginia Earth Science Rocks

Which rock is metamorphic and shows evidence of foliation?

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These diagrams show the crystals of four different rocks seen through the same hand lens. Which crystals most likely formed from molten material that cooled and solidified most rapidly?

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Which of the following rocks is NOT igneous? (a)  

• Granite
• Gneiss
• Obsidian
• Basalt

The "weathering" position in the rock cycle would be found-- (a)  

• At position 1
• At position 2
• At position 3
• At position 4

During metamorphism, shale becomes-- (a)  

• Marble
• Quartzite
• Slate
• Gneiss

The Rocky Mountains are mainly limestone. The dark horizontal stripe is a sill. Barely noticeable, above and below the sill is a white band of metamorphic rock. What kind of rock should it be? (a)  

Read this again... it's asking what does limestone morph into?

• Marble
• Quartzite
• Slate
• Basalt

The two types of metamorphic rocks are-- (a)  

• Foliated and nonfoliated
• Clastic & nonclastic
• Intrusive & extrusive
• Clastic & recrystallized

Which of these best describes intrusive igneous rocks?

• solidifies from lava, cools quickly, large crystals

• solidifies from lava, cools slowly, small crystals

• solidifies from magma, cools quickly, large crystals

• solidifies from magma, cools slowly, large crystals

Pumice is an igneous rock that can float on water. Which of these is most likely pumice?

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What is the MAIN way rocks are classified? (a)  

• Color and shape
• Formation Process
• Mineral bands/layers
• Location where they formed