ES Unit 4 Rocks and Minerals Review

How are sedimentary rocks, such as shale and sandstone, formed?

• Particles are changed into liquids.
• Particles are compressed into layers.
• Particles are melted together by magma.
• Particles are heated by the Sun.

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In order for sediments to become rock, the sediments are generally

• liquefied.
• compacted.
• returned to their origins.
• mixed with organic material.

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Which processes must occur in order for an igneous rock to change into a metamorphic rock?

• heating and pressure
• compaction and cementation
• melting and cooling
• uplift and erosion

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Which process forms the mineral halite?

• the slow crystallization of magma deep in the crust
• the cementing together of sediment particles
• the hardening of lava in seawater
• the evaporation of seawater

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Which process causes sand grains to stick together to form sandstone?

• cementation
• abrasion
• combustion
• erosion

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Coal is formed from

• plant remains decomposed under pressure.
• melted and cooled metamorphic rock.
• natural gas subjected to heat.
• seas that have evaporated.

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Fossils are sometimes found in which type of rock?  (Fossils can only survive this rock's process of formation.)

• intrusive igneous
• extrusive igneous
• metamorphic
• sedimentary

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The property of luster means..

• the hardness of a mineral
• the color of the mineral
• the streak the mineral leaves
• how the mineral reflects light

What is the purpose of the scratch test?

• to find if the rock contained calcite

• to find the hardness of the mineral

• to find the color

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Intrusive Igneous rocks will be 

• coarse grain
• fine grain