Rocks/Rock Cycle/Soil Test

Igneous rock that forms when magma hardens beneath/INSIDE Earth's surface SLOWLY and large crystals are often formed (like in granite)

• Intrusive Rock
• Extrusive Rock

A common characteristic that could help you identify an igneous rock as cooling ON the surface from LAVA like PUMICE is...

• A rock that is very small in size

• Vesicles (big air bubbles) and very small or no crystals

• Large crystals that are multi-colored

• Being dark or light in color and having layers

Rocks that are formed from magma or lava are called

• sedimentary

• metamorphic

• igneous

• clastic

Which describes the soil layers in order from the surface?

• top soil, bedrock, humus, subsoil

• top soil, subsoil, horizon C, bedrock
• humus (organic), topsoil, subsoil, parent rock, bedrock

Which layer is the Organic Humus

• Horizon O

• Horizon A

• Horizon B

• Horizon C

• Horizon R

______________metamorphic rocks have a layered or banded appearance that is produced by exposure to heat and direct pressure.

• Foliated

• Non Foliated

• Layered

• Striated

Permeability is...

• when soil gets carried away

• when soil is broken down by wind, water, or ice

• how fast water travels through the soil

• how much water the soil holds

Soil is considered NONRenewable

• True

• False

All rocks are made of minerals.

• True
• False

Which type of soil has the HIGHEST Porosity and Permeability (big pores and water goes through it really fast)

• Sand

• Silt

• Clay

• Gravel