UNIT 2 STUDY GUIDE Chambless

Sarah's class is studying soils. They are learning about soil texture. Sarah holds a handful of damp soil in her hand. She rubs some of the soil between her fingers. The soil feels very soft and a lot like flour. It is not sticky and it is not gritty. Her soil is MOST LIKELY

• Gravel

• Humus

• Sand

• Silt

Virginia’s Blue Ridge Mountains were once among the tallest in the world, similar in altitude to the Himalayas of today. This would still be the case if not for the process of

• Erosion

• Folding

• Volcanism

• Metamorphism

The deposition of sediments carried by rivers results in the formation of

• Deltas

• Plains

• Harbors

• Barrier Reefs

Which type of rock typically has the largest formed crystals?

• Metamorphic

• Sedimentary

• Extrusive Igneous

• Intrusive Igneous

Frost wedging is a form of weathering caused by water seeping into the cracks of rocks. This type of weathering is common in regions that have very cold winters. How does frost wedging take place?

• This is a physical weathering process — when water freezes, it expands, pushing the rock apart slowly over a period of time.

• This is a chemical weathering process — carbonic acid formed by the reaction of water and carbon dioxide breaks the bonds that hold the rock together.

• This is a physical weathering process — when water freezes, the temperature of the rock is decreased, causing the outer layers of the rock to crumble off.

• This is a chemical weathering process — water reacts with the chemicals in the rock by a process call hydrolysis and breaks the bonds that hold the rock together.

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

• Acid Test

• Streak Test

• Hardness Test

• Fracture Test

All BUT _____________ directly causes erosion.

• Ice

• Rain

• Wind

• Sunlight

During the rock cycle, ______________ follows erosion.

• Burial

• Deposition

• Igneous Rocks

• Crystallization

What causes sedimentary rock to change into metamorphic rock?

• Cooling

• Melting

• Heat & Pressure

• Weathering & Erosion

Molten hot magma that cools very slowly can cause ______________ in igneous rock.

• Mineral layering

• Glass-like formations

• Settling of precious metals

• The formation of large crystals