What can cause a rock, like granite, to break down over time?
weathering
100
Earth material can be transported by what process?
erosion
100
What process drops sediment out of suspension?
deposition
100
Tiny grains of broken-down rock is known as _________. (not sand)
sediment.
200
What sphere forms a thin layer of gases around Earth?
Atmosphere
200
What are the two major types of weathering?
chemical and physical
200
What are two agents of erosion? (What could transport earth material to a new location?)
water, wind, ice, gravity
200
A landform that forms at the mouth of a river through deposition is call a __________.
Delta
200
Weathering, erosion, and deposition all effect which sphere of the Earth?
the geosphere
300
What are the three (or in Social Studies four) layers of the geosphere?
core, mantle, crust
300
Name three examples of physical weathering.
ice wedging, root wedging, abrasion, animal action, etc.
300
Erosion can create many different types of landforms. Name one.
canyons, cliffs, caves, sinkholes
300
Name a very famous river delta on Earth.
Mississippi River Delta or Nile River Delta
300
Delta comes from the Greek word for ________.
What is change?
400
What is the most abundant gas in our atmosphere?
nitrogen
400
Name two examples of chemical weathering.
oxidation, reactions with acids
400
A massive river of ice, rocks and soil that moves slowly down
a mountain is called a __________.
glacier
400
When a stream flows onto a flat land surface from mountains or hills, the sediment is deposited and this fan-shaped deposit forms the dry land.
What is an alluvial fan?
400
Landslides and falling rocks are examples of erosion and deposition by which agent of erosion?
gravity
500
When water evaporates, what two spheres is it transitioning between?
hydrosphere and atmosphere
500
Explain why 10, 1 kg pieces of limestone would weather more rapidly than a 1, 10 kg piece of limestone.
The 10 1 kg pieces will weather more rapidly due to their extra surface area over that of the 1 10 kg piece of limestone. Acids and other types of weathering have more surfaces to attack on the 10 smaller pieces of limestone.
500
In Iowa, soil loss is a big problem. What theme of geography does this represent?
Human Environment Interaction
500
Sand, silt, and clay are the three classifications of soil particles. Name two ways in which these differ.
weight, size, mass, texture
500
Is water an agent of physical or chemical weathering?