The Rock Cycle

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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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

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

• erosion

• deposition

• weathering

• subsidence

What do mudstone and other sedimentary rocks formed from the remains of

once-living plants and animals have in common?

• They are made up of the same kinds of minerals

• They are formed from layers of sediment

• They are formed when melted rock cools and hardens

• They are made up of the cooled magma

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Melted rock found beneath the Earth's surface is called______________

• magma

• heated rock

• lava

• fragment rock

Rocks that have been changed by intense heat and/or pressure are called_________________rocks.

• sedimentary

• compound

• igneous

• metamorphic

Sedimentary Rocks

• Are made from magma

• Are made up of different pieces of rock

• Are heated to high temperatures and then cooled

• Are all of the above

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Magma that cools below Earth's surface forms_______ rock.

• Extrusive metamorphic

• Extrusive igneous

• Intrusive metamorphic

• Intrusive igneous

Rocks that are produced when magma or lava cools and hardens are called

• Igneous Rock

• Metamorphic rocks

• Sedimentary rocks

• all of the above