Minerals and Rocks

Jennifer was investigating granite, a type of rock that forms when magma deep below the Earth's crust cools off and hardens. What type of rock is granite?

• bedrock

• igneous

• sedimentary

• metamorphic

Mrs. Smith's performed a scratch test using her fingernail, a copper penny, glass, and a steel nail. Which property is Mrs. Smith testing?

• streak

• cleavage

• fracture

• hardness

Shale is formed from clay, silt or mud particles that have been compacted together by pressure. What type of rock is shale?

• bedrock

• igneous

• sedimentary

• metamorphic

Tags

NGSS.MS-ESS2-1

Granite is a coarse or medium-grained rock that is rich in quartz and feldspar. It is formed when bodies of magma cool and harden deep below the earth. What type of rock is granite?

• bedrock

• igneous

• metamorphic

• sedimentary

Under what conditions can igneous rock be transformed into metamorphic rock?

• if it is forced deep into Earth, where it melts into magma

• if it is heated and put under pressure for long periods of time

• if layers of sand accumulate over it and harden over a period of time

• if it is exposed at the surface and is weathered over a period of time

Sedimentary rock is formed when rock fragments, minerals, and the remains of plants and animals are deposited as sediments and are then

• chemically weathered by water.

• compacted and cemented together.

• recrystallized under the weight of the layers.

• melted due to increased temperature and pressure.

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-1

Foliation can develop in a rock as a response to intense heat and pressure. This rock should be classified as

• banded.

• igneous

• metamorphic

• sedimentary

Jill's teacher made a peanut butter and jelly sandwich and explained that one type of rock is formed when layers of sediment are squeezed and cemented together. After the rock is formed, you can still see the layers in the rock. What kind of rock is described?

• mineral rock

• igneous

• metamorphic

• sedimentary

Which of these statements BEST describes rocks?

• Rocks may contain one or more minerals.

• Rocks are made inside the Earth’s mantle.

• Just like minerals, rocks have a definite shape.

• Rocks and minerals have a definite chemical composition.

Scratching a mineral on a porcelain tile or ceramic plate tests for ____________.

• streak

• hardness

• scratch

• color