Science 8: Earth and Space Science

Prescribed Learning Outcomes / Suggested Achievement Indicators / Classroom Assessment Model

Water Systems on Earth

  • D1 Explain the significance of salinity and temperature in the world’s oceans
  • D2 Describe how water and ice shape the landscape
    • Define weathering and erosion
    • Describe how gravity directs the movement of water and ice and transports weathered materials through slow processes (rivers and glaciers) and fast processes (landslides)
    • Identify and illustrate various alpine and continental glacial features (e.g., cirques, arêtes, horns, hanging valleys, crevasses, moraines, eskers, outwash, fjords, icebergs, striations, erratics)
    • Describe how waves and tides are generated (e.g., waves: wind action; tsunamis: tectonic processes; tides: gravitational pull)
    • Describe the impact of water movement (e.g., waves, tides, river flow) on surface features (e.g., weathering, erosion, deposition)
  • Give students the following case study: You are a geologist assigned to study a BC town where waves, tides, and/or river flow are affecting surface features. The town council wants to know what they must do to limit the adverse impact of weathering and erosion.
    • Ask students to develop a presentation to the town council. Presentations should
      • Identify problem areas (e.g., erosion on cliffs, outside river banks, danger of tsunamis) and predict potential consequences
  • Have students research a given aquatic species (e.g., mussels, salmon, kelp, duck). Ask students to answer questions such as:
    • Where does each species live?
    • How abundant are they?
    • What are their predators?
    • How do they obtain nutrients?
    • How would each species respond to changes in their aquatic environment?
    • How would this environment be affected if their species disappeared?
      • Have students share research on related organisms, and present their combined information on a poster, which includes a diagram of the aquatic environment (e.g., intertidal).

 

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