A stream table. Water on top, left side moves toward the middle of the right side.

Question

A stream table is a tool used to show how water causes erosion. Water from the left side of the table is added to model a stream.
Suppose a block of wood is placed under the left edge of the table.
Which characteristic of the stream is changed?
gradient of the stream
sediment in the stream

Answer 1

When a block of wood is placed under the left edge of the stream table, the angle or slope of the table is altered. This change affects the flow of water, specifically increasing the gradient of the stream as it moves from the left side toward the middle and right side of the table.

In summary, the characteristic of the stream that is changed is the gradient of the stream.