Rock Cycle

1. Metamorphic rock is produced when_____________.

• Magma cools within the crust

• Rock material is subjected to heat and pressure

• Basalt forms in the ocean

• Tectonic plates diverge

2. New igneous rock forms when______________.

• Existing rock gets buried and squeezed

• Sand and gravel get compacted and cemented

• Dead organisms get buried for millions of years

• Magma or lava cools and hardens

3. What must happen to a sedimentary rock for it to become an igneous rock?

• It must be weathered and eroded

• It must become cemented to other rocks

• It must be put under pressure until new minerals form

• It must melt, then cool and harden

4. Why do metamorphic rocks rarely contain fossils?

• These rocks are formed underwater and the water dissolves fossils

• The rock formation occurs from extremely hot magma deep inside the crust where organisms do not live

• These rocks undergo extremely high pressure or temperature changes when formed, which would destroy the fossils

• These rocks are usually formed from extremely hot magma or severe volcanic explosions, which would destroy fossils

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5. Which of the following is a true statement about the rock cycle?

• Heat, pressure,cooling, weathering, erosion, and deposition change rock

• The formation of rock within the cycle ends after metamorphic rocks form

• Weathering occurs in igneous rocks but never in sedimentary or metamorphic

• Sedimentary rock can revert to metamorphic rock but never igneous

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6. Which of the following is NOT true about the role tectonic forces play in the rock cycle.

• When plates pull apart, rocks melt, and magma forms igneous rock

• When plates crash together rocks are buried and form metamorphic rocks

• When plates slide over and under each other, the heat and pressure form igneous rocks

• When rocks push upwards and form mountains, the erosion of the mountains can produce sediment

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7. When rocks are broken down into small pieces, like sand and gravel, the pieces are known as _________.

• Magma Sediments Humus Debris

• Sediments

• Humus

• Debris

8. Which statement correctly describes the rock cycle.

• Igneous rock can only form by heat and pressure

• Metamorphic rock can only form by crystallization

• Magma can only form by compaction and cementation

• Sediment can only form by weathering, erosion, and deposition

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9. The process by which rocks are broken down into smaller pieces is called

• Foililation

• Erosion

• Deposition

• Weathering

10. What processes can be used to complete the diagram of the rock cycle

• 1-cooling, 2-weathering and erosion, 3-pressure

• 1-weathering and erosion, 2-cooling, 3-pressure

• 1-weathering and erosion, 2-pressure, 3- cooling

• 1-weathering and erosion, 2- weathering and erosion, 3- weathering and erosion

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