Day 18
What is the difference between erosion and
deposition?
Erosion is when something like moving
water or wind picks up loose bits of rock.
Deposition is when the water or wind
slows down and the rock bits settle.
Erosion is when the movement starts;
deposition is when it stops.
Daily Warm-Up Exercises
1
Weathering & Erosion Video
(Part 4)
Investigation 4
My Sediments Exactly
2
Review
What did the stream table represent?
The sand and clay represented the
Colorado Plateau. The water
represented the Colorado River.
How were the stream-table earth materials
different from the Colorado Plateau?
The stream-table layers weren't made of
hard rock.
3
Video
Read the questions on the Weathering and
Erosion Video worksheet (pages 31 & 32).
We will watch the video in 10-minute
intervals.
Take notes during the video, and answer
the questions when we pause.
4