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Grade 5 Science · World 1: Earth Shapers · Level 2
Weathering
Explain how water, ice, plants, and temperature break rock into smaller pieces.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 2
- Weathering breaks rock into smaller pieces. The pieces stay where they are, for now.
- Ice is strong. Water seeps into a crack and freezes. It gets bigger, and pushes the rock apart.
- Plants do it too. A tiny root grows into a crack, gets thicker, and splits the rock.
- Water can dissolve some rock, like limestone, very slowly. That's how many caves form.
Georgia Standards of Excellence in Science:
- S5E1.a — Construct an argument supported by scientific evidence to identify surface features (examples could include deltas, sand dunes, mountains, volcanoes) as being caused by constructive and/or destructive processes (examples could include deposition, weathering, erosion, and impact of organisms).