Free 3rd Grade Erosion Worksheets

Erosion teaches students that Earth's surface is constantly being changed by natural forces, water, wind, ice, and gravity, that carry rock and soil from one place to another. Third graders learn to distinguish erosion (the wearing away) from deposition (the dropping off) and identify real-world examples like river valleys and sand dunes. It builds understanding of slow Earth processes that operate over very long time scales.

Erosion is typically covered in Grade 3 earth science as part of a unit on Earth's changing surface, often alongside rocks and minerals, volcanoes, and earthquakes. At ages 8-9, students can grasp the idea that small forces acting over long periods create dramatic landscape changes. The concept pairs well with hands-on investigations using sand, water, and trays.

Try a simple at-home erosion demo: pour water slowly over a pile of dirt or sand in a tray and let your child describe what happens using the vocabulary from the worksheet. The diagram activities and real-photo examples in the worksheets make it easy to connect the science to landscapes your child has seen on trips or in books. Even a five-minute outdoor observation, looking at how water has shaped a nearby stream bank, brings the concept alive.