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Earth Science
Earth Science
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Middle school earth science soil, Grand Canyon, sedimentary rocks and earth history
Flashcards
10 cards
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Practice quiz
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Host live
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Questions
10
Answers
1
What is humus made of
Silt
Inorganic material
Organic material
Iron
2
What is topsoil?
The first 12 inches of soil
Bedrock
A, B, and C
A layer from the mantle
3
What can be found in the layer above sand?
Humus
Silt
Clay
Bedrock
4
What are types of rocks are found in the Grand Canyon?
sedimentary
metamorphic
igneous
candy
5
Where are the newer layers of rocks located?
At the surface
In the bedrock
In the mantle
In the silt
6
What are the causes of mechanical weathering?
All of the above
Frost
Wind
Tree roots
7
What causes the Grand Canyon to widen
boulders
The force of the Colorado River
All of the above
rocks
8
Soil is the result of______________
rock weathering
sand
rocks
bark
9
What is loam?
baking soda and sedimentary rocks
an equal mixture of sand, silt and clay
one of the earth's layers
rocks and humus
10
What kind of rock is effected by acid and acid rain
Gneiss
Granite
Shale
Limestone
