What do we call a dark line that separates states, countries, and different areas?
A boundary.
100
What do we call the wearing away of earth material?
Erosion
100
Give me one example of chemical erosion outside of Excelsior.
Drainage pipes, bus signs, etc.
100
What question were we investigating for our erosion experiment?
What happens when water runs over a plateau?
100
Where does erosion occur?
Everywhere on the planet!
200
What do we call a fan-shaped area at the end of a canyon or channel?
Delta
200
What do we call shapes or features of the earth's surface, like a delta or canyon?
Landforms
200
What kind of erosion causes the cracks in sidwalks to get larger?
Ice erosion
200
What *famous* landform were we trying to learn about in this experiment?
The Grand Canyon
200
True or false: In five million years the United States will look completely different than it does now.
True.
300
What do we call a v-shaped valley that was eroded by a river or stream?
Canyon
300
What do we call it when rocks or sediment is carried by water and dropped off in another place?
Deposition
300
What kind of erosion caused grass to die by the track field?
Water erosion
300
What happened to the sediment that was once part of the plateau?
It was deposited at the base of the plateau, near the delta.
300
Please explain how sand erosion works.
Wind picks up sand and the tiny sand particles slowly take chips off of rocks, over time smoothing them out.
400
Give me two examples of a structure.
Anything built by people
400
What do we call little pieces of rock that break off and become smaller (like sand)?
Sediment
400
Were the rocks young or old by the pond? How could you tell?
Older because they were very smooth.
400
Why was the darker sediment close together by the delta?
It had a similar mass so it was deposited in the same area in the stream.
400
Mr. Harnack is thinking of buying a beach house on a cliff by an ocean as a retirement home. What potential problem could Mr. Harnack have in the future? Please explain using the word "erode" or "erosion"
Over time water will erode the cliff, causing the house to eventually fall down into the water.
500
What do we call something that explains how an object works or functions?
Model
500
What is the difference between a map and a model?
Maps show WHERE things are; models show HOW they work.
500
Give me an example of water erosion that we observed outside. (you may not use an answer that has been talked about in this game thus far)
Mini-canyon that was formed, grass was dead around school, area by 10th St. pond, etc.
500
Explain what happened when we poured water over our plateau using at LEAST 2 vocab words.
Water was poured on the PLATEAU and the water slowly carved away pieces of sediment, forming a canyon. This sediment was then deposited towards the base of the canyon, forming a delta.
500
In the Bill Nye video, what were the tall, pillars of rocks called that were formed by wind erosion?