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Vocab.
Minerals
Rocks
Earth
Earth's Change
100
The layer of loose material that covers the Earth's land is ___________.
soil
100
What is a mineral?
a natural, nonliving material that makes up rocks
100
Rocks are made up of one or more....
minerals
100
What is our Earth mostly made of?
rocks
100
What process would most likely affect rocks in a dry area? erosion by water, weathering by plants, weathering by water, or erosion by wind
erosion by wind
200
a naturally formed solid made of one or more minerals
a rock.
200
What is the hardest mineral found?
diamond
200
What kind of rock looks most like layers?
sedimentary
200
Which is not a substance that soil contains? clay, air, water, or humus
clay
200
This causes erosion to happen
weathering
300
movement of weathered material
erosion
300
What is the softest mineral found
talc
300
What is rock that changes from one type to another
metamorphic rock
300
What are the three layers of soil in order from top layer to bottom?
topsoil, subsoil, bedrock
300
What is deposition?
placing of pieces of Earth's surface in a new place
400
A solid feature of Earth's crust
landform
400
What do you call the color powder left behind by a mineral when it's rubbed against a white tile?
streak
400
What kind of rock is formed from volcanoes
igneous
400
True or False? Landforms are always changing?
true
400
Name a slow change on Earth's surface and a rapid change
slow- mountains, valleys, weathering, erosion etc.. rapid- earthquake, tsunami
500
any process that breaks rocks into smaller pieces
weathering
500
Name two properties that can help you identify an unknown mineral
hardness, streak, color, luster, cleveage
500
What are the three types of rock groups?
igneous, sedimentary, metamorphic
500
What is a way that valleys form?
a river cuts through rock
500
How does lava change the surface of the earth?
new rocks are made