WorksheetsUnit 3: Rocks, Weathering, Erosion, and Soil
Total questions: 20
Worksheet time: 10mins
Which substance is a mixture of organic matter & weathered rock?
Schist
Soil
Limestone
Granite
What is located beneath soil layers?
Bedrock
Humus
Lava
Tundra
The 4 agents of erosion are________
air, fire, water, & metamorphism
wind, water, gravity, & ice
topographic, sedimentary, igneous, & deposition
igneous, sedimentary, metamorphic, & gravity
Which layer in a soil profile would be most affected by weathering & erosion
C horizon
B horizon
R horizon
A horizon
The 2 types of weathering are _________
alpha & beta
physical & conventional
conduction & convection
chemical & physical
Ice forms in the cracks of a basalt rock formation and breaks some rock into smaller pieces. At which point in the cycle shown above would the process of breaking
down rocks occur?
J
K
L
M
Granite forms when liquid magma slowly cools within Earth’s crust. If the granite is exposed to intense heat and pressure, it can change to gneiss.
Which type of change takes place when granite turns into gneiss?
Sedimentary rock changes to igneous rock.
Igneous rock changes to metamorphic rock.
Metamorphic rock changes to igneous rock.
Sedimentary rock changes to metamorphic rock.
Declan observed a rock that he found at the beach. The rock felt hard, it was yellow, and it appeared to be made of layers. Declan concluded that the rock was sedimentary.
Which observation best supports this conclusion?
The yellow color
The layers within the rock
The hardness of the rock
The location where the rock was found
Over time, repeated cycles of heating and cooling can cause a rock to crack. The rock may then break into smaller pieces.
What is this process called?
Deposition
Erosion
Subsidence
Weathering
As a glacier moves along the ground, it transports rocks. These rocks pass over the ground and create scratches in the bedrock.
Which statement correctly describes these processes?
The transport of rocks and scratching of the bedrock are both examples of erosion.
The transport of rocks and scratching of the bedrock are both examples of weathering
The transport of rocks is an example of erosion, and the scratching of the bedrock is an example of weathering.
The transport of rocks is an example of weathering, and the scratching of the bedrock is an example of erosion.
Emily used a tray filled with dirt as a model of a stream. Emily poured water into the top of the tray and observed how much erosion happened. Emily then increased the slope of the tray and repeated the experiment.
What would happen when the slope of the tray increased?
The speed of the water and the amount of erosion would increase.
The speed of the water and the amount of erosion would decrease
The speed of the water would increase, while the amount of erosion would decrease
The speed of the water would decrease, while the amount of erosion would increase.
Marley has a vegetable garden in her yard. During a storm, heavy rain falls. The rain runs over the garden, and some of the soil is washed away.
Which term best describes this movement of soil from one place to another?
Deposition
Discharge
Erosion
Weathering
Erosion is the process by which soil and sediment are moved by wind, water, or gravity. Erosion occurs naturally, but it can be accelerated by human activity.
Which of these human activities least contributes to soil erosion?
Urban sprawl
Planting trees
Surface mining
Improper plowing of furrows
Riley rubs two rocks together. She notices that some of the surface of one of the rocks was worn away to form small particles.
What has happened to that rock?
It was eroded
It was dissolved
It was exfoliated
It was weathered.
Which of the following is true about wind and water changing the size of mountains over many millions of years?
The continuous movement of wind and water changes the size of mountains over many millions of years
Nothing can change the size of mountains over many millions of years, not even the continuous movement of wind and water.
The continuous movement of wind and water changes the size of some mountains, but not all mountains.
Even though mountains change in size over many millions of years, the changes are not due to the continuous movement of wind and water.
