Rocks and Minerals Rock Cycle

Rocks are classified as igneous, sedimentary, or metamorphic based mainly on their

• texture and shape.

• method of formation

• grain size.

• mineral content.

A pocket of melted rock, or magma, has formed deep below the surface of Earth. After the pocket of magma slowly cools, what does the magma become?

• igneous rock

• marble

• sedimentary rock

• metamorphic rock

In order for sedimentary rock to form, which of the following must occur?

• compaction

• intrusion

• oxidation

• metamorphism

Slate is a type of rock that forms when shale rock is exposed to heat and pressure deep under Earth's surface for thousands of years. What type of rock is slate?

• igneous

• intrusive

• metamorphic

• sedimentary

Granite is often used for decoration and sculpting because the large crystal formations are very beautiful. The large crystals are formed when magma cools slowly. What type of rock is granite?

• Igneous

• metamorphic

• sedimentary

• marble

Tags

NGSS.MS-ESS2-1

When are igneous rocks formed?

• when layers of mud form inside Earth

• when layers of mud are compressed

• when melted rock hardens

• when solid rock melts

Lorna decided to study rocks while on vacation in Hawaii. Which type is she most likely to find in Hawaii?

• She will find mainly igneous rock, because Hawaii has and was formed by active volcanoes.

• She will find mainly sedimentary rock, because Hawaii has high winds and ocean currents.

• She will find mainly sedimentary rock, because Hawaii has a large amount of organic plant matter

• . She will find mainly metamorphic rock, because Hawaii always has high temperatures.

Igneous rock is formed from cooling magma. Which process will change igneous rock into sediment?

• heat and pressure

• melting

• cooling

• weathering and erosion

Which type of rock could contain fossils of woolly mammoths?

• igneous

• metamorphic

• sedimentary

• minerals

Tags

NGSS.MS-LS4-1

A rock that is composed of several large, rounded pebbles and sand grains cemented together is most likely

• an igneous rock

• a sedimentary rock

• a rock formed by evaporation

• a rock formed by intense heat.