Grade 6Sciencequiz16 questions

Mixtures and separation

Grade 6: pure substances and mixtures, dissolving, filtering, evaporation, solutions.

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Free to play. Teams answer on one screen; your phone is the remote. No student devices.

Questions

  1. Which of these is a pure substance?

    • Air
    • Distilled water
    • Fresh orange juice
    • Sea water
    Show answerDistilled water
  2. A mixture contains two or more substances that are not chemically joined. (True or false?)

    Show answerTrue
  3. Which of these is a mixture?

    • Gold
    • Oxygen
    • Pure salt
    • Salad
    Show answerSalad
  4. What word describes a substance, such as sugar, that can dissolve in a liquid? (Answer out loud)

    Show answerSoluble
  5. In salt water, which part is the solvent?

    • Both of them
    • Neither of them
    • The salt
    • The water
    Show answerThe water
  6. Which change usually helps sugar dissolve faster in water?

    • Cooling it to freezing
    • Leaving it still
    • Stirring it
    • Using bigger lumps
    Show answerStirring it
  7. Which mixture can be separated by filtering?

    • Ink and water
    • Salt and water
    • Sand and water
    • Sugar and water
    Show answerSand and water
  8. In filtering, what is the liquid that passes through the filter paper called? (Answer out loud)

    Show answerThe filtrate
  9. Sand and salt are stirred into water, then filtered. What is the filtrate?

    • Dry salt crystals
    • Pure water
    • Salt water
    • Sand
    Show answerSalt water
  10. Filtering is a good way to get dissolved salt back out of salt water. (True or false?)

    Show answerFalse
  11. Which method gets salt from salt water?

    • Evaporation
    • Filtering
    • Sieving
    • Using a magnet
    Show answerEvaporation
  12. During evaporation, what happens to the water?

    • It is destroyed
    • It turns into a gas
    • It turns into a solid
    • It turns into salt
    Show answerIt turns into a gas
  13. A solution is made of a solute and what else? (Answer out loud)

    Show answerA solvent
  14. A solution looks the same all the way through, and the solute cannot be seen. (True or false?)

    Show answerTrue
  15. A solution that cannot dissolve any more solute at that temperature is called…

    • Diluted
    • Evaporated
    • Insoluble
    • Saturated
    Show answerSaturated
  16. To get pure water from salt water and keep the water, you would use…

    • Distillation
    • Filtering
    • Magnetism
    • Sieving
    Show answerDistillation

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