📐 Standards Alignment

4-ESS2-1 NGSS

Make observations and measurements to provide evidence of the effects of weathering or the rate of erosion by water, ice, wind, or vegetation.

4-ESS2-2 NGSS

Analyze and interpret data from maps to describe patterns of Earth’s features.

View all Grade 4 Science standards →

📦 Materials Needed

Sand or soil tray
Water dropper or spray bottle
Rock samples or images
Physical or topographic maps

🎯 Teaching Strategies

💡

Separate the Processes Clearly Teach weathering, erosion, and deposition as connected but distinct processes, using one example for each.

💡

Use Simple Models Let students observe how dripping water or blown air can move sediment across a tray.

💡

Connect Models to Maps After hands-on work, show maps with rivers, valleys, plains, and mountains so students apply the ideas to real Earth features.

⚠️ Common Misconceptions

❌ Misconception

Students think weathering and erosion are always the same

✅ Correction

Use side-by-side examples and keep asking whether the material moved.

❌ Misconception

Students think Earth changes only during giant disasters

✅ Correction

Highlight slow everyday changes such as rain, stream flow, roots, and wind.

📊 Differentiation Tips

Struggling

Use picture cards that sort examples into weathering, erosion, or deposition.

On-level

Have students explain one local or familiar example of a changing land surface.

Advanced

Ask students to compare how water, wind, and ice may change land in different regions.

🚀 Extension Activities

Create a labeled diagram showing weathering, erosion, and deposition in one scene.
Compare a river map and a mountain map for patterns of Earth’s features.
Observe a puddle or stream area after rain and describe where sediment moved or settled.