We have discussed that there are a number of factors that can cause erosion, such as wind, water, glaciers or chemicals. Look at the pictures below and try to identify the type of erosion shown. If you are unsure of an answer, reread your science journal and then watch part of the video clip again.

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Discuss your responses with a peer and try to determine the answers. Once everyone is finished, your teacher will facilitate a class discussion to collaboratively decide on the best answer or whether more than one could apply. Afterward, write any new ideas or information in your science journal.

Click the river below to continue with the lesson.