Weathering
What are 2 types o of weathering?
chemical and physical weathering
What is erosion?
Erosion is the carrying away or moving rocks and sediment to a new location
When does erosion happen in the cycle?
A. before weathering
B. after weathering
C. after deposition
b. after weathering
What natural hazard might result from an earthquake or volcanic eruption in the middle of the ocean?
tsunami
What is deposition?
When rocks and sediment are dropped or deposited in a new place.
what is an example of physical weathering?
Weathering from water, wind, ice, or living things.
What is an example of wind erosion
Wind blowing sand from a sand dune to another location
What is weathering?
Weathering is the process of breaking down and weakening sediments that will be moved by erosion.
What is one thing we can do to help slow down the erosion process?
plant grass or other plants to stop the washing away of soil; build seawalls; or put rocks on hills or between water and land
When does deposition happen in the cycle?
A. Before weathering
B. Before erosion
C. After weathering
D. After erosion
D.
What is an example of chemical weathering?
acid rain
Erosion can be caused by what 3 kinds of weathering?
1. Wind 2. Ice 3. Water
Why can't the cycle of weathering, erosion, and deposition be stopped?
The erosion cycle is part of nature. Humans can't stop it, but we can help slow it down.
what 3 natural hazards can an earthquake cause?
landslide, volcano, tsunami
what do seashell fossils indicate?
the land was once covered by water
What is the correct order of the 3 parts of the erosion cycle?
weathering, erosion, deposition
While driving along the highway in Pennsylvania I noticed huge rocks along the highway. Large nets covered these rocks and seemed to go from the top to the bottom. Were these nets put in place to stop weathering or erosion?
erosion: even when rocks become broken they can not be carried or moved to another location
Give and example of water erosion
An example of water erosion is when a river pulls sediment and small rocks from the riverbanks and carries it all down stream to another place.
what natural disaster can result from after a tsunami?
flood, buildings destroyed, loss of live
What is a fossil?
remains or marks of a plant or animal that lived long ago
Give an example of how weathering could be destructive.
Weathering may include violent storms, such as a hurricane, or flood.
Rocks, mud, or snow can collect and slide down the side of a mountain
Why is it important for us to learn about how weathering and erosion happen
If we know the process of weathering and erosion then we can help prevent them from happening by planting on hills and putting rocks securely in areas wher soil can erode
What is an example of ice erosion
An example is when a glacier scrapes rock and sediment as it moves down hill, and leaves it in a different location
Why do plants need soil?
Holds plants in place; provide plants with nutrients and water
what rock layer is the oldest? newest?
top
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