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Microorganisms

5th grade (Year 6 in England) · 16 questions · Common Core: NGSS.5-LS2-1 · England: KS2 Y6 Living things and their habitats

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  1. Question 1

    Is this microorganism helpful or harmful: mould growing on old bread?

    • A. helpful
    • B. harmful

  2. Question 2

    How did Alexander Fleming's discovery of penicillin in 1928 help people?

    • A. It made food last for ever.
    • B. It made bread rise faster.
    • C. It led to antibiotics, medicines that kill harmful bacteria.
    • D. It cured colds caused by viruses.

  3. Question 3

    True or false? Some bacteria help us digest food.

    • A. True
    • B. False

  4. Question 4

    Is this microorganism helpful or harmful: mould growing on old bread?

    • A. helpful
    • B. harmful

  5. Question 5

    Why does bread dough rise when yeast is added?

    • A. Yeast is a kind of air.
    • B. The oven pulls the dough up.
    • C. Yeast feeds on sugar and gives off carbon dioxide gas bubbles.
    • D. Yeast makes the flour heavier.

  6. Question 6

    True or false? Antibiotics cure illnesses caused by viruses.

    • A. True
    • B. False

  7. Question 7

    Is this microorganism helpful or harmful: mould growing on old bread?

    • A. helpful
    • B. harmful

  8. Question 8

    Why do we keep food in the fridge?

    • A. Cold kills all germs instantly.
    • B. Cold slows down the growth of microorganisms that spoil food.
    • C. To make food warmer.
    • D. It makes food grow.

  9. Question 9

    True or false? Mould is a kind of plant.

    • A. True
    • B. False

  10. Question 10

    Is this microorganism helpful or harmful: bacteria turning milk into yoghurt?

    • A. helpful
    • B. harmful

  11. Question 11

    How did Alexander Fleming's discovery of penicillin in 1928 help people?

    • A. It led to antibiotics, medicines that kill harmful bacteria.
    • B. It made bread rise faster.
    • C. It made food last for ever.
    • D. It cured colds caused by viruses.

  12. Question 12

    True or false? Microorganisms are living things too small to see without a microscope.

    • A. True
    • B. False

  13. Question 13

    Is this microorganism helpful or harmful: gut bacteria helping digestion?

    • A. helpful
    • B. harmful

  14. Question 14

    How did Alexander Fleming's discovery of penicillin in 1928 help people?

    • A. It made food last for ever.
    • B. It led to antibiotics, medicines that kill harmful bacteria.
    • C. It made bread rise faster.
    • D. It cured colds caused by viruses.

  15. Question 15

    True or false? All microorganisms are harmful.

    • A. True
    • B. False

  16. Question 16

    Is this microorganism helpful or harmful: gut bacteria helping digestion?

    • A. helpful
    • B. harmful

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Answer key: Microorganisms

  1. 1. B. harmful

  2. 2. C. It led to antibiotics, medicines that kill harmful bacteria.

  3. 3. A. True

  4. 4. B. harmful

  5. 5. C. Yeast feeds on sugar and gives off carbon dioxide gas bubbles.

  6. 6. B. False

  7. 7. B. harmful

  8. 8. B. Cold slows down the growth of microorganisms that spoil food.

  9. 9. B. False

  10. 10. A. helpful

  11. 11. A. It led to antibiotics, medicines that kill harmful bacteria.

  12. 12. A. True

  13. 13. A. helpful

  14. 14. B. It led to antibiotics, medicines that kill harmful bacteria.

  15. 15. B. False

  16. 16. A. helpful