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Making Mountains: An Erosion Lesson
4th Grade
Objective Make observations and/or measurements to provide evidence of the effects of weathering or the rate of erosion by water, ice, wind, or vegetation. Materials Needed Erosion: Changing Earth’s Surface by Robin Koontz or Cracking Up: A Story About Erosion by Jacqui Bailey Observation sheet Rocks, gravel and sand Plastic or metal trays (one for each group) One-liter bottles of water (one for each group) Rulers or tape measures (one for each group) Introduction Read aloud Erosion: Changing Earth’s Surface by Robin Koontz or Cracking Up: A Story About Erosion by Jacqui Bailey to introduce students to the process of erosion and how it affects Earth and its landforms.
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