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PlayOwl

Science · Grade 4

Weathering, Erosion and Natural Hazards

Water, ice, wind and roots break rock apart (weathering) and carry the pieces away (erosion). Learners measure weathering in a model, read maps to find patterns in where mountains, volcanoes and earthquakes occur, and compare engineering solutions that reduce the impact of natural hazards on people, from earthquake-resistant buildings to tsunami warning systems.

  • 3 lessons
  • About 105 minutes
  • Weathering, erosion and hazards check: 9 questions
  • Ways to answer: choose an answer, pick map regions, match pairs, type a number, sort into groups and true or false
See plans Included with Family, Teacher and School plans. Open in PlayOwl

What learners will discover

  • Use observations and measurements as evidence of weathering and of the rate of erosion by water, ice, wind and plants.
  • Use maps to describe patterns in the locations of Earth's features, such as mountain ranges, volcanoes and earthquakes.
  • Generate and compare solutions that reduce the impact of natural Earth processes on people.

Lessons

  1. Breaking and moving rock 5 steps3 practiceabout 33 min
  2. Patterns on the map 5 steps3 practiceabout 32 min
  3. Reducing the impact of hazards 7 steps3 practiceabout 40 min
  4. Weathering, erosion and hazards check 9 questions at the end

Keep exploring

Games to practice with

  • Marble MountainLay straights, curves, drops and splitters to roll marbles down the mountain.
  • Bridge LabBuild a bridge from beams, brace it with triangles, and stay on budget.
  • Circuit Workshop 3DWire up batteries, bulbs and switches on a 3D workbench.

More 4th grade science

Guide for grown-ups