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Yeast Balloon Experiment Worksheet

Science experiments lesson 16: Yeast balloon · Set 290 · 40 questions
TalentJR

What you do (Yeast is alive): 1. Pour warm (not hot) water into the bottle — an adult checks it. 2. Add the yeast and the sugar and swirl gently. 3. Stretch the balloon over the bottle’s mouth. 4. Wait 30 minutes, measure the balloon, then pour the mixture away and wash up.

NameDateTime takenScore ___ / 40
  1. 1.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? True or false: the same bottles is the one thing we change. (a) False (b) True
  2. 2.🧺 Three of these are needed for the yeast balloon. Which one is NOT needed? (a) sugar (b) dry yeast (c) warm water (d) a mirror
  3. 3.🧺 Three of these are needed for the yeast balloon. Which one is NOT needed? (a) warm water (b) a balloon (c) sugar (d) a magnet
  4. 4.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we change it (c) we measure it
  5. 5.🔍 Which is the odd one out? (a) sunlight (b) sugar (c) salt (d) a magnet
  6. 6.🧺 Do we need warm water for the yeast balloon? (a) needed (b) not needed
  7. 7.🎈 What blows up the balloon in the yeast experiment? (a) smoke (b) steam (c) carbon dioxide gas (d) air from outside
  8. 8.True or false: turmeric powder is not needed for the yeast balloon. (a) False (b) True
  9. 9.🧺 Which of these is needed for the yeast balloon? (a) a magnet (b) a battery cell (c) a mirror (d) sugar
  10. 10.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? Which of these is the one thing we change? (a) the amount of water (b) size of the balloon (c) the amount of sugar (d) the water temperature
  11. 11.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? Which of these is kept the same? (a) size of the balloon (b) the amount of yeast (c) the water temperature
  12. 12.🧺 Three of these are needed for the yeast balloon. Which one is NOT needed? (a) turmeric powder (b) warm water (c) a balloon (d) dry yeast
  13. 13.🍞 Which of these is something yeast needs? (a) a magnet (b) sunlight (c) time (d) salt
  14. 14.True or false: a mirror is needed for the yeast balloon. (a) True (b) False
  15. 15.🧺 Do we need sugar for the yeast balloon? (a) not needed (b) needed
  16. 16.True or false: a battery cell is needed for the yeast balloon. (a) False (b) True
  17. 17.True or false: dry yeast is not needed for the yeast balloon. (a) False (b) True
  18. 18.🍞 Which of these is something yeast needs? (a) warm water (b) a magnet (c) salt (d) vinegar
  19. 19.🍞 Does yeast need sunlight to make gas? (a) yeast needs it (b) yeast does not need it
  20. 20.🧺 Do we need turmeric powder for the yeast balloon? (a) needed (b) not needed
  21. 21.True or false: a small bottle is not needed for the yeast balloon. (a) True (b) False
  22. 22.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? What do we do with “the water temperature”? (a) we change it (b) we keep it the same (c) we measure it
  23. 23.🧺 Do we need a magnet for the yeast balloon? (a) not needed (b) needed
  24. 24.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? True or false: the water temperature is what we measure. (a) True (b) False
  25. 25.True or false: sugar is needed for the yeast balloon. (a) True (b) False
  26. 26.🔍 Which is the odd one out? (a) sunlight (b) time (c) a magnet (d) salt
  27. 27.🔍 Which is the odd one out? (a) time (b) warm water (c) salt (d) sugar
  28. 28.True or false: sugar is something yeast does not need. (a) False (b) True
  29. 29.True or false: time is something yeast does not need. (a) False (b) True
  30. 30.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? True or false: the same bottles is kept the same. (a) False (b) True
  31. 31.🧺 Three of these are needed for the yeast balloon. Which one is NOT needed? (a) dry yeast (b) a small bottle (c) a balloon (d) a paper clip
  32. 32.🧺 Do we need a comb for the yeast balloon? (a) not needed (b) needed
  33. 33.True or false: a battery cell is not needed for the yeast balloon. (a) False (b) True
  34. 34.🛟 The water for the yeast should be ___. (a) boiling hot (b) very salty (c) ice cold (d) warm, not hot
  35. 35.🧺 Which of these is needed for the yeast balloon? (a) a mirror (b) a magnet (c) a balloon (d) a comb
  36. 36.🧺 Which of these is not needed for the yeast balloon? (a) dry yeast (b) sugar (c) turmeric powder (d) warm water
  37. 37.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? What do we do with “the same bottles”? (a) we measure it (b) we change it (c) we keep it the same
  38. 38.True or false: sunlight is something yeast needs. (a) False (b) True
  39. 39.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? True or false: the amount of yeast is the one thing we change. (a) False (b) True
  40. 40.🍞 Which of these is something yeast needs? (a) vinegar (b) sugar (c) salt (d) sunlight

Answer key

  1. False
  2. a mirror
  3. a magnet
  4. we keep it the same
  5. sugar
  6. needed
  7. carbon dioxide gas
  8. True
  9. sugar
  10. the water temperature
  11. the amount of yeast
  12. turmeric powder
  13. time
  14. False
  15. needed
  16. False
  17. False
  18. warm water
  19. yeast does not need it
  20. not needed
  21. False
  22. we change it
  23. not needed
  24. False
  25. True
  26. time
  27. salt
  28. False
  29. False
  30. True
  31. a paper clip
  32. not needed
  33. True
  34. warm, not hot
  35. a balloon
  36. turmeric powder
  37. we keep it the same
  38. False
  39. False
  40. sugar

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