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Grade 4 · Science · Unit 9 of 10

Rocks vs. Minerals

Properties and uses

What your child practises

Children tell rocks from minerals, describe and classify them by their properties, and link their properties to how people use them.

Prince Edward Island Curriculum curriculum outcome: Space and Earth Science: Rocks, Minerals, and Erosion · telling rocks from minerals, classifying them by properties and how they are used

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

    What is a negative effect of mining?

    • It makes the soil richer everywhere
    • It helps animals find food
    • It always makes new habitats
    • It can damage habitats and leave scars on the land

  2. Question 2

    Why do we put rock observations in a chart?

    • so the rocks cannot move
    • so the rocks become heavier
    • so the rocks stay clean
    • so we can compare them easily

  3. Question 3

    A chart shows Rock 1 is hard and grey, Rock 2 is soft and white, Rock 3 is hard and white. Which rock is soft?

    • Rock 3
    • Rock 2
    • Rock 1
    • None of them

  4. Question 4

    What is graphite, a soft grey mineral, used for?

    • making windows
    • growing crops
    • the writing part of a pencil
    • building bridges

  5. Question 5

    Granite is made of quartz, feldspar and mica. Is granite a rock or a mineral?

    • a living thing
    • a metal alloy
    • a rock
    • a mineral

  6. Question 6

    Two students sort the same rocks and get different groups. Why might this happen?

    • They may choose different properties to sort by
    • One of them is wrong about every rock
    • Rocks change when sorted
    • Sorting always gives the same groups

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