Words
Definitions
Layers of Soil
Weathering/Erosion
Math Terms
100
Rock cycle
What is the changing of rocks over time?
100
A solid substance that occurs naturally in rocks or in the groung.
What is a mineral?
100
Decayed plant and animal matter is on the soil surface.
What is humus?
100
The breaking down of Earth's surface into pieces.
What is weatherering?
100
The answer to a multiplication problem.
What is product?
200
Horizons
What is a lyaer of soil?
200
The substance that makes up most of Earth's crust.
What is rock?
200
This is the bottom level.
What is bedrock?
200
The process of moving sediment to other places.
What is erosion?
200
The answer to a division problem.
What is quotient?
300
Humus
What is the remains of decayed plants and animals?
300
This is dark and is a mixture of minerals and humus.
What is topsoil?
300
Some processes that contribute to weathering and erosion that shape landforms.
What are plants, waves, and wind?
300
50 x 1000
What is 50,000?
400
Igneous
What is the type of rock that forms when melted rock cools and hardens?
400
This is caused when water dissolves underground rock.
What is a sinkhole?
400
This contains partly weathered rock.
What is subsoil?
400
When scratching a mineral or rock on a tile.
What is the streak test?
400
How many zeros will be in the product of 500 x 500
What is 4?
500
Bedrock
What is the bottom layer of soil?
500
These are developed when two of the plates that make up Earth's surface come together and push against each other.
What are mountains?
500
Name the layers of the soil from top to bottom.
What is humus, topsoil, subsoil, and bedrock?
500
The property all soil horizons share.
What is partly weathered rock?
500
What is the basic fact in 8,000 x 9,000
What is 9 x 8 = 72?
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