Erosion Quiz

When the wind carries sand and dirt, that sand and dirt can brush against rocks and wear them away.

Which TWO statements below are true?

• The stronger the wind blows, the faster the rocks will erode

• The stronger the wind blows, the slower the rocks will erode

• The wind's strength has no effect on how fast the rock erodes

Erosion causes rocks to . . .

• break into smaller pieces

• stay the same

• cement into another rock

• move to another location

Tiny sediments can be eroded (carried away) by all of the following EXCEPT...

• wind

• water

• ice

• earthquake

Which canyon has had a river flowing through it for the longest amount of time?

• Canyon A

• Canyon B

• Both canyons rivers have been flowing for the same amount of time

The picture shows how much sediment has eroded in each container. Which container had water flowing for a longer amount of time?

• Container A because a larger amount of sediment eroded into the container

• Container B because a smaller amount of sediment eroded into the container

• Both rivers had water flowing for the same amount of time

Based on the picture, the holes in this rock were most likely caused by _____ erosion.

• wind

• water

• ice

• gravity

Based on the picture, this landform was most likely carved out by ______ erosion.

• wind

• water

• ice

• gravity

Answer both question in a complete sentence to get all points

1) Which canyon (A or B) had the fastest flowing river?

2) EXPLAIN how you know.

Which bottle had the cleanest water?

• the bottle with the grass

• the bottle with the leaves

• the bottle with just soil

How is the grass able help the soil form eroding?