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Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 5 · 40 questions
TalentJR

What you do (Acid + base → gas): 1. Pour vinegar into the plastic bottle, standing on a tray. 2. Spoon two teaspoons of baking soda into the balloon. 3. Stretch the balloon over the bottle’s mouth, letting it hang to the side. 4. Lift the balloon so the soda drops in, and keep faces back.

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  1. 1.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the gas froze (d) the bottle got tired
  2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we change it (b) we measure it (c) we keep it the same
  3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we measure it (c) we keep it the same
  4. 4.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
  5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
  6. 6.True or false: vinegar is an acid. (a) False (b) True
  7. 7.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
  8. 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a seed (c) vinegar (d) a tray for spills
  9. 9.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) shake it near your face (c) put it in your mouth (d) seal it in a glass jar
  10. 10.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) lots of fizzy bubbles (c) nothing at all (d) it turns to ice
  11. 11.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False
  12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
  13. 13.True or false: sugar is not needed for the fizzy balloon. (a) True (b) False
  14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) False (b) True
  15. 15.True or false: tamarind water is an acid. (a) True (b) False
  16. 16.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
  17. 17.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
  18. 18.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) add baking soda (c) ignore it (d) rinse with clean water
  19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) vinegar (c) a comb (d) a balloon
  20. 20.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
  21. 21.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it turns blue (c) it grows bigger (d) it shrinks
  22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) the same bottle (c) spoons of baking soda (d) the amount of vinegar
  23. 23.🫧 Which of these is a base? (a) orange juice (b) vinegar (c) tamarind water (d) detergent water
  24. 24.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) False (b) True
  25. 25.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
  26. 26.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
  27. 27.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
  28. 28.True or false: orange juice is neutral. (a) True (b) False
  29. 29.True or false: soap solution is a base. (a) True (b) False
  30. 30.🔍 Which is the odd one out? (a) curd (b) vinegar (c) lemon juice (d) soap solution
  31. 31.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a funnel or spoon (c) a mirror (d) vinegar
  32. 32.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) it is only dissolving (c) no, nothing changes (d) yes, a new gas forms
  33. 33.🔍 Which is the odd one out? (a) lemon juice (b) tamarind water (c) detergent water (d) vinegar
  34. 34.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a balloon (c) a seed (d) sugar
  35. 35.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
  36. 36.🫧 Which of these is neutral? (a) plain water (b) curd (c) baking soda water (d) tamarind water
  37. 37.🫧 Which of these is an acid? (a) vinegar (b) detergent water (c) baking soda water (d) sugar water
  38. 38.🔍 Which is the odd one out? (a) orange juice (b) baking soda water (c) tamarind water (d) lemon juice
  39. 39.🫧 Is plain water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
  40. 40.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False

Answer key

  1. an ingredient ran out
  2. we keep it the same
  3. we change it
  4. False
  5. True
  6. True
  7. False
  8. a seed
  9. keep it away from eyes
  10. lots of fizzy bubbles
  11. True
  12. True
  13. True
  14. True
  15. True
  16. not needed
  17. False
  18. rinse with clean water
  19. a comb
  20. a base
  21. it grows bigger
  22. spoons of baking soda
  23. detergent water
  24. False
  25. needed
  26. an acid
  27. an acid
  28. False
  29. True
  30. soap solution
  31. a mirror
  32. yes, a new gas forms
  33. detergent water
  34. a balloon
  35. True
  36. plain water
  37. vinegar
  38. baking soda water
  39. neutral
  40. False

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