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Grade 7 · Science · Unit 1 of 10

Earth’s Surface Processes

Plates, mountains, weathering, erosion and the rock cycle.

What your child practises

Practises Earth surface processes: plate tectonics, earthquakes and volcanoes, weathering, erosion and deposition, and the rock cycle, with local examples from the Appalachians and the Bay of Fundy. It follows the Grade 7 science skill descriptors on matter and Earth surface processes in the New Brunswick curriculum.

New Brunswick Curriculum skill descriptor: Scientific Literacy: Sensemaking · explanations about Earth surface processes based on evidence from inquiry

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    Which process turns sediments into sedimentary rock?

    • melting and cooling
    • compaction and cementation
    • heating and squeezing only
    • evaporating only

  2. Question 2

    What is physical weathering?

    • changing rock into new minerals
    • making new rock
    • melting rock
    • breaking rock into smaller pieces without changing its minerals

  3. Question 3

    Which is the strongest agent of erosion in a river valley?

    • standing water
    • a still pond
    • ice cubes
    • flowing water

  4. Question 4

    Why does soil form slowly?

    • weathering and decay work over hundreds of years
    • it falls from the sky
    • wind makes it in one day
    • it is made in factories

  5. Question 5

    The Appalachian Mountains in New Brunswick are…

    • very old and worn down
    • very young and tall
    • made of ice
    • volcanoes

  6. Question 6

    How can people reduce the damage from earthquakes?

    • ignore warnings
    • avoid drills
    • build strong buildings and have a plan
    • build on loose sand

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