The Rock Cycle and Devils Tower

Sediment forms sedimentary rock through a process called __________.

• metamorphism

• erosion

• lithification (cementation)

• weathering

Which type of rock forms when magma cools and solidifies?

• Sedimentary rock

• Igneous rock

• Metamorphic rock

Fill in the blank: The process of _______ occurs when minerals in water act like glue, binding the compacted sediment together.

• cementation

• evaporation

• erosion

• weathering

The significance of Devils Tower to the Lakota and other American Indian tribes is:

• A sacred site for ceremonies and rituals.

• A popular tourist destination.

• A location for mining activities.

• A site for scientific research.

Devils Tower is taller than the surrounding flat land because it was formed by:

• Erosion of surrounding sedimentary rock

• Volcanic eruption

• Tectonic uplift

• Glacial movement

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NGSS.MS-ESS2-2

What type of rock is Devils Tower made of?

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NGSS.MS-ESS2-3

Devils Tower was formed through a process involving:

• volcanic activity and erosion

• glacial movement

• tectonic plate collision

• sedimentary rock deposition

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NGSS.MS-ESS2-2

The Law of Superposition states that in any sequence of undisturbed sedimentary rocks, the oldest layers are at the bottom and the youngest layers are at the top.

• The oldest layers are at the top and the youngest layers are at the bottom.

• The oldest layers are at the bottom and the youngest layers are at the top.

• All layers are of the same age.

• The age of the layers cannot be determined.

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NGSS.MS-ESS1-4

According to the Law of Superposition, where are the oldest layers of rock found?

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Which type of rock is formed from the accumulation of sediment?

• Sedimentary rock

• Igneous rock

• Metamorphic rock

• Mineral rock

Answer explanation

Sedimentary rock is formed from the accumulation and compaction of sediment, such as sand, mud, and minerals. This distinguishes it from igneous and metamorphic rocks, which form through different processes.