Free Grade 3 Ontario science worksheets

Free printable Grade 3 Ontario science worksheets covering Growth and changes in animals, Forces and motion, and Soils. Mapped to the Ontario curriculum: Science and Technology (2022), including C2 and E2. The sample mixes these topics. A single-topic sheet shows that topic's mapped expectation when one is recorded. Preview the questions, then print a Letter worksheet or open the full set in QuizPrint. Canadian English. Unofficial practice — not a ministry document.

Topics

  • Growth and changes in animals

    Ontario · Life Systems

    Answer questions about animals and life cycles.

  • Forces and motion

    Ontario · Matter and Energy C2

    Answer questions about forces and motion.

  • Soils

    Ontario · Earth and Space Systems E2

    Answer questions about soil.

Sample questions

10 questions from mixed topics. This public sample does not change when generators update. Ontario curriculum: Science and Technology (2022). This mixed sample does not use one code. Mapped expectations include C2 and E2. A single-topic sheet prints its own code.

  1. 1.

    What is an unbalanced force?

    • Athe colour of a moving object
    • Bforces that cancel each other
    • Ca net force that changes an object's motion
    • Da force that never changes speed
  2. 2.

    A ball is dropped from a desk. Which direction does gravity pull it?

    • Asideways toward the wall
    • Bupward toward the ceiling
    • Cstraight down toward Earth
    • Din whatever direction it was thrown
  3. 3.

    What forms the tiny rock bits found in soil?

    • Adead leaves pressed by rain
    • Bseeds that harden in the ground
    • Cwater that dries into stone
    • Dlarger rocks broken down over long periods
  4. 4.

    What do all animals, including a deer, need?

    • Afood, water, air, and shelter
    • Bfood and water, but not air
    • Csoil instead of shelter
    • Dsunlight so they can make food like plants
  5. 5.

    Why is walking harder on ice than on dry pavement?

    • Aice removes the force of gravity
    • Bthere is less friction on ice
    • Cgravity is stronger on ice
    • Dthere is more friction on ice
  6. 6.

    Why might a robin build a nest or find shelter?

    • Ato stay safe and raise young
    • Bto store heat from the sun
    • Cto change into a plant
    • Dto make food from sunlight
  7. 7.

    Is a spider an insect?

    • AOnly if it has six legs
    • BNo
    • COnly if it has wings
    • DYes
  8. 8.

    A handful of damp, dark earth is mostly...

    • Asoil
    • Ba single mineral crystal
    • Cpure water
    • Da gas only
  9. 9.

    Nina digs up a handful with 8 small rocks, bits of dead leaves, air spaces, and water. This mixture is...

    • Aa single mineral
    • Bsoil
    • Ca pure element
    • Dbedrock
  10. 10.

    Plant roots on a slope help the soil by...

    • Ablocking all water from entering
    • Bholding it in place
    • Cremoving air spaces plants need
    • Dmaking the soil softer so rain washes it away

Science in other grades

More Grade 3 subjects