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Grade 6 Science practice sheet

Alberta Curriculum · from Gradelings · Name: ______________________

  1. Question 1

    What is melting?

    • A solid changing to a liquid
    • A liquid changing to a gas
    • A gas changing to a liquid
    Show answer

    A solid changing to a liquid

    Hint: Heating a solid makes the particles move more.

  2. Question 2

    The temperature rises from 12 °C to 19 °C. By how much did it rise?

    • 31 degrees
    • 5 degrees
    • 7 degrees
    Show answer

    7 degrees

    Hint: Subtract 12 from 19.

  3. Question 3

    What does expansion mean?

    • Taking up more space
    • Taking up less space
    • Disappearing
    Show answer

    Taking up more space

    Hint: Most materials expand when heated.

  4. Question 4

    A force that opposes the movement of surfaces that touch is…

    • tension
    • friction
    • thrust
    Show answer

    friction

    Hint: Friction slows a sliding sled.

  5. Question 5

    In a tug-of-war, the Blue team pulls left with 250 N and the Gold team pulls right with 230 N. What is the net force on the rope?

    Pulling force (N)
    0306090120150180210240270⬅️ Blue (left)➡️ Gold (right)
    • 480 N to the left
    • 0 N (balanced)
    • 20 N to the left
    • 20 N to the right
    Show answer

    20 N to the left

    Hint: When forces point in opposite directions, subtract the smaller from the larger. The net force points the way of the bigger force. Equal forces are balanced: the net force is 0 N.

  6. Question 6

    A hockey stick bends when a player shoots, then straightens. Why does this help?

    • It melts a little
    • Its elasticity stores and releases energy
    • Plasticity keeps it bent
    Show answer

    Its elasticity stores and releases energy

    Hint: The stick returns to its shape and passes energy to the puck.

  7. Question 7

    What is a non-renewable energy resource?

    • One that will not be replaced for thousands or millions of years
    • One that comes only from the Sun
    • One that never runs out
    Show answer

    One that will not be replaced for thousands or millions of years

    Hint: Fossil fuels take millions of years to form.

  8. Question 8

    What does a transformer help do on the power grid?

    • Store the electricity forever
    • Make the wires thicker
    • Change voltage so electricity can be sent safely and used
    Show answer

    Change voltage so electricity can be sent safely and used

    Hint: Power lines carry high voltage over long distances.

  9. Question 9

    In a gas, the particles…

    • stay in a pile
    • are far apart and move in all directions
    • are locked in place
    Show answer

    are far apart and move in all directions

    Hint: Gases spread out to fill their container.

  10. Question 10

    Which temperature is the coldest?

    • 0 °C
    • −15 °C
    • 5 °C
    Show answer

    −15 °C

    Hint: Negative temperatures are below zero, and the bigger the negative number, the colder.

Answer key

  1. 1. A solid changing to a liquid (Particles and Heat)
  2. 2. 7 degrees (Measuring Temperature)
  3. 3. Taking up more space (Expanding, Shrinking and Freezing Water)
  4. 4. friction (Forces in Interactions)
  5. 5. 20 N to the left (Gravity & Friction)
  6. 6. Its elasticity stores and releases energy (Changing Shape)
  7. 7. One that will not be replaced for thousands or millions of years (Energy Resources)
  8. 8. Change voltage so electricity can be sent safely and used (Making and Using Electricity)
  9. 9. are far apart and move in all directions (Particles and Heat)
  10. 10. −15 °C (Measuring Temperature)

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