Unit 6 Rocks and Minerals Final Review

What is the difference between cleavage and fracture?

• Cleavage is the breaking of a mineral along flat, smooth surfaces, while fracture is the breaking of a mineral along either curved or irregular surfaces.

• Fracture is the breaking of a mineral along flat, smooth surfaces, while cleavage is the breaking of a mineral along either curved or irregular surfaces.

• Cleavage relates to the cracks in a mineral and fracture relates to how the mineral breaks.

• Fracture relates to the cracks in a mineral and cleavage relates to how the mineral breaks.

Granite is a rock that is formed from magma inside of a volcano. Which type of rock would granite most likely be?

• Intrusive Igneous

• Sedimentary

• Foliated Metamorphic

• Extrusive Igneous

When limestone is exposed to enough heat and pressure, it goes through physical changes. These changes can turn limestone into a different kind of rock called marble. Which of these BEST describes marble?

• It is an igneous rock.

• It is a synthetic rock.

• It is a sedimentary rock.

• It is a metamorphic rock.

While on vacation, Judy found a rock with a seashell fossil. What type of rock did she most likely find?

• Biochemical

• Sedimentary

• Igneous

• Metamorphic

Tags

NGSS.MS-LS4-1

This model shows layers of sediment on the floor of an ocean. Which of the following best explains how these layers can become rock over many years?

• Sand in the sediment melts and turns into rock.

• The weight of the water compacts the sediment into rock.

• Changing water temperatures turns sand in the sediment into rock.

• Pollution caused by humans turns the sediment into rock.

Tags

NGSS.MS-ESS2-2

Where do sediments come from?

• There have always been sediments on Earth

• Sediments accumulated as dust fell to Earth from other space

• Weathering of other rocks

• Coarse-grained rocks

For a science experiment, a student rubs a mineral against a porcelain plate. The student has just performed...

• an acid test.

• a streak test.

• a hardness test.

• a fracture test.

Which factor is most important in determining which minerals will form in a rock?

• The size of the rock.

• The density of the rock.

• The hardness of the rock.

• The composition (make-up) of the rock.

Tags

NGSS.MS-PS1-1

You find a mineral outside after lunch. When you come inside, you decide to try to test it and determine what you found. Which of the following tests would be the least helpful to determine the mineral's identity?

• The mineral's luster.

• The mineral's color.

• The mineral's hardness on the MOHS scale.

• The mineral's streak.

Which part of the rock cycle is most closely associated with soil formation?

• compaction

• weathering

• melting

• compaction and cementation

Tags

NGSS.MS-ESS2-2