Grade 3 Science practice

What is on the worksheet

1. Why keep the release height the same when comparing paper shapes?

   1. Height is never relevant.
   2. Height could affect travel distance.
   3. It makes the paper heavier by definition.

2. Which observation is more specific?

   1. The material looks successful.
   2. The material absorbed 5 mL in the stated test.
   3. The material is definitely perfect.

3. A pond's water level falls sharply. Which effect is plausible?

   1. The pond becomes a mountain.
   2. Every species must increase.
   3. Available aquatic habitat may decrease.
   4. No organism can be affected.

4. Which example describes camouflage?

   1. A moth's colour resembles the bark it rests on.
   2. A plant grows roots.
   3. A bird makes a loud call.
   4. A fish swims quickly.

5. Which is an observation?

   1. The liquid changed from clear to cloudy.
   2. The experiment must be perfect.
   3. A new substance definitely formed.
   4. The sample is dangerous.

6. Which part of a plant usually absorbs water from the soil?

   1. Seeds
   2. Fruit
   3. Flowers
   4. Roots

7. Matter and changes: which term fits this description? The dissolving medium in a solution.

   1. Solvent
   2. Volume
   3. Solute
   4. Liquid

8. Suggest a fair way to compare two towels for absorbency.

9. Which tool is most suitable for measuring a pencil's length?

   1. a thermometer
   2. a balance
   3. a calendar
   4. a ruler

10. An object extends from the 2 cm mark to the 9 cm mark. Find its length in cm.

11. You compare two identical plants to investigate light. Describe one thing you would change and two things you would keep the same.

12. Why use several plants in each condition?

    1. to guarantee the preferred result
    2. to change every variable
    3. to reduce the influence of an unusual individual
    4. to remove the need to measure

13. A pupil records plant height every morning. Which is the measured outcome?

    1. question title
    2. pot label
    3. height
    4. pupil name

14. Living things and their needs: which term fits this description? The reproductive structure of a flowering plant.

    1. Insect
    2. Life cycle
    3. Pollination
    4. Flower

15. Matter and changes: which term fits this description? A change in form or state without forming a different chemical substance.

    1. Physical change
    2. Solvent
    3. Melting
    4. Conductor

16. Why is recording 8 without a unit incomplete in a measurement table?

17. Why might a ramp help move a load upward even though the route is longer?

18. Matter and changes: which term fits this description? A state of matter that expands to fill the available container.

    1. Solid
    2. Gas
    3. Condensation
    4. Solution

19. Explain why the same feature may help in one habitat but not another.

20. Space and the solar system: which term fits this description? The planet closest to the Sun.

    1. Jupiter
    2. Solar eclipse
    3. Mercury
    4. Light-year