Earth's Structure
Soil
Landforms
Good Stewards
Random
100
The very center of the earth is called:
a. core
b. mantle
c. crust
a. core
100
A substance in the earth that has never been alive is called a mineral.
True / FalseTrue
100
A place in the earth where magma can erupt as lava is called a....
volcano
100
Water, the right kind of air, and good soil are examples of natural...
a. landforms
b. resources
c. minerals
b. resources
100
Matter that settles at the bottom of a liquid is called...
a. sediment
b. minerals
c. sand
a. sediment
200
The second layer of the earth, where magma is found, is called:
a. crust
b. core
c. mantle
c. mantle
200
The loss of topsoil from water and wind is called...
a. water runoff
b, weathering
c. erosion
c. erosion
200
A natural formation of rock or soil on the earth’s surface is called a
a. lake
b. landform
c. erosion
landform
200
Farmers keep the same crops to put minerals in the soil that were used up.
True/ False
False. They rotate the crops to put minerals back into the soil.
200
Seventy percent of the earth’s surface is covered by land.
True/False
False
70% is water
300
The outer layer of the earth is the:
a. crust
b. core
c. mantle
a. crust
300
In what kind of soil do plants grow well?
a. crumbly
b. sediment
c. fertile
c. fertile
300
A new landform made by soil deposited at the end of a river is a...
a. source
b. mouth
c. delta
delta
300
A ditch formed where soil washed away is called:
a. gully
b. trench
c. hole
a. gully
300
What is magma?
a. hot liquid rock found in the earth’s mantle
b. hot liquid rock that erupts from a volcano
a. hot liquid rock found in the earth’s mantle
400
What is the imaginary line around the center of the earth called?
a. poles
b. equator
c. rotate
b. equator
400
What is humus made of?
living things that are broken down, decayed
400
What is precipitation on land that eventually trickles into streams called?
a. water runoff
b. sediment
c. gully
a. water runoff
400
The shaking of the earth’s crust is a...
a. earthquake
b. volcano
c. landslide
a. earthquake
400
How many continents are there on the earth?
Seven
500
Where are the coldest places on the earth?
The poles
500
Name the 3 layers of soil:
Topsoil
Subsoil
Bedrock
500
Name the 3 types of quickly formed landforms
(Think ELVEs)
Earthquake
Landslide
Volcanic Eruption
(Surface change)
500
Name two ways we can be good stewards of the earth.
recycling, repurposing, reusing,
saving water, electricity,
conserving soil
500
Name the two ways the surface of the earth changes slowly:
weathering
erosion