earth’s rocks mineralsrockssoilsmiscellaneous 10 20 30 40 50
TRANSCRIPT
Earth’s Rocks
Minerals Rocks Soils Miscellaneous
10 10 10 10
20 20 20 20
30 30 30 30
40 40 40 40
50 50 50 50
Minerals form only in ____________, from materials that were never alive.
nature
What is the most useful property for identifying
minerals.
hardness
How is a rock different from a mineral?
A rock is made up of one or more minerals.
Name one mineral and how it is used everyday.
Graphite – pencil
Copper – computer parts
Iron – make steel
Rock salt - food
Name one property of a minerals and how it is used to identify the mineral.
streak, fluorescence, crystal shape, cleave,
hardness
Rock that forms whenmelted rock hardens.
Igneous Rock
Rock that forms when smaller bits of rock bind together.
Sedimentary Rock
Rock that has been changed by pressure, heat, or very hot water.
Metamorphic Rock
What types of rock can form thanks to the rock cycle?
Igneous, Sedimentary, & Metamorphic Rock
What causes both igneous and metamorphic rock to form where a land plate meets an ocean plate?
Heat and pressure caused by the collision
of the plates
The bottom soil horizon, mainly composed of rock
bedrock
What is the middle layer of soil, which is mostly made of small bits of rock?
Subsoil
What soil layer contains the most humus; decayed plant and animal matter?
Topsoil
What natural event caused the soil to be blown from farms in the central US?
Dust Bowl/Storms
How thick is a layer of topsoil usually?
A few centimeters
A natural, solid substance with a definite chemical composition and physical structure.
mineral
The uppermost layer of soil, which is more crumbly than other soil layers.
Topsoil
It is important to conserve soil because it takes many __________
of years for soil to form naturally.
thousands
Melted rock within the Earth.
magma
Name one way farmers have changed their farming techniques to help conserve soil.
Windbreaks of trees, contour plowing, strips with shallow/deep roots
Tie Breaker
The surface of the earth is made of these and is not this.
The surface of the earth is made up of plates it is
not a single slab of rock.