what is soil
How do we describe features of
Earth’s surface?
What are weathering
and erosion?
What are weathering
and erosion?
100
List the three layers of soil in the correct order from the top layer to the bottom layer.
topsoil, subsoil, bedrock
100
Give one example of a slow change in Earth’s surface. Give one example of a rapid change in Earth’s surface.
Mountain building is a slow change. A landslid is a rapid change.
100
What is weathering?
any action that breaks rocks into smaller pieces.
100
what is erosion by water?
erosion by water picks up soil and weathered material and carries it to other places.
200
How are sandy soil and clay soil alike?
Both contain rock particles, along with humus, water, and air
200
How does lava change the surface of Earth?
The lava forms new igneous rock.
200
What is erosion?
the movement of weathered materials.
200
how are weathering and erosion different?
weathering breaks down rocks. Erosion movies weathered material.
300
What is soil?
Soil is the layer of loose material that covers most of Earth`s land. What is soil?
300
list names of three landforms ?
mountains, hills , valleys
300
What can form as a result of erosion?
New islands
400
What is Humus?
Humus is the made of the remains of the plants and animals that were once alive.
400
Which is a way that valleys form?
a river cuts through rock. the moving glacier scrapes up rocks and soil, lowering the level of the land.
400
where is erosion by wind likely to occur?
In dry regions, such as deserts.
500
Which soil breaks down to provide resources for making new soil?
bedrock
500
What is a landform ?
a solid feature formed on Earth`s crust
500
what is weathering by water?
water changes the minerals in some rocks. the rocks become weakened and begin to break apart.
M
e
n
u