Rock Cycle Unit 1 Lesson 2

Granite has only recently been exposed at a location on Earth’s surface. What will need to happen first in order for granite to become sedimentary rock?

• A thick layer of humus must form on top of the granite.

• The granite must be broken into smaller pieces by weathering processes.

• Erosion by wind and water must move pieces of granite to other locations.

• Microorganisms must begin to break down the remains of plants and animals.

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NGSS.MS-ESS2-4

Declan observed a rock that he found at the beach. He concluded that the rock was sedimentary. Which observation best supports this conclusion?

• the yellow color

• the hardness of the rock

• the layers within the rock

• the location where the rock was found

Granite forms when magma slowly cools within Earth’s crust. Basalt forms when lava cools on Earth’s surface. What do granite and basalt have in common?

• They are kinds of igneous rock.

• They are not made up of minerals.

• They are identical in color and texture.

• They are made up of layers of sediment.

Repeated temperature changes can cause a rock to break down into smaller pieces. Which part of the rock cycle is this an example of?

• erosion

• deposition

• weathering

• subsidence

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Which produces the material for the formation of metamorphic rock?

• clasts

• magma

• sediments

• existing rock

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NGSS.MS-ESS2-1

Derrick started to create a flow chart to show which kinds of rock can change into metamorphic rock.

Which rock types should Derrick include in the top box? (use the diagram in the picture)

• igneous rock only

• sedimentary rock only

• igneous rock, sedimentary rock, or metamorphic rock

• either igneous rock or sedimentary rock, but not metamorphic rock

The flow chart shows how a metamorphic rock can change into a sedimentary rock.

Which term should replace the question mark?

• cooling

• melting

• weathering

• deposition

The diagram shows an incomplete rock cycle.

Which rock types belong in circles 1, 2, and 3?

• 1. igneous

  2. sedimentary

  3. metamorphic

• 1. metamorphic

  2. igneous

  3. sedimentary

• 1. sedimentary
  2. igneous
  3. metamorphic
• 1. sedimentary
  2. metamorphic
  3. igneous

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NGSS.MS-ESS2-1

Pick all the ways intrusive igneous rocks and extrusive igneous rocks are alike and how they are different.

• intrusive is magma and extrusive is lava

• intrusive has larger minerals and extrusive are smaller or none

• intrusive forms under the surface and extrusive forms on the surface

How does an igneous rock becomes a sedimentary rock? Use the rock cycle diagram.

• weathering, erosion, sediment, compaction & cementation

• heat and pressure

• melting, magma, cooling

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