Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 224 · 40 questions

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.

1. 1.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we measure it (c) we change it
3. 3.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a tray for spills (c) a funnel or spoon (d) a comb
5. 5.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a mirror (c) baking soda (d) a seed
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the same bottle
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a seed (c) an empty bottle (d) a funnel or spoon
8. 8.🫧 Which of these is neutral? (a) soap solution (b) detergent water (c) salt water (d) lemon juice
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.⚖️ 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
11. 11.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
12. 12.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
13. 13.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) orange juice (b) vinegar (c) detergent water (d) tamarind water
15. 15.🫧 Which of these is an acid? (a) soap solution (b) orange juice (c) plain water (d) baking soda water
16. 16.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) an empty bottle (c) vinegar (d) a magnet
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
19. 19.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a mirror (c) an empty bottle (d) a battery cell
20. 20.🫧 Which of these is an acid? (a) sugar water (b) plain water (c) tamarind water (d) salt water
21. 21.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) plain water (d) tamarind water
22. 22.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) the bottle shrinks (d) outside air gets in
23. 23.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) a balloon (c) a funnel or spoon (d) vinegar
24. 24.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) there is no change (c) it shrinks (d) it grows bigger
25. 25.True or false: sugar is needed for the fizzy balloon. (a) False (b) True
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) the same bottle (c) the kind of balloon (d) size of the balloon
27. 27.True or false: detergent water is a base. (a) True (b) False
28. 28.True or false: orange juice is a base. (a) False (b) True
29. 29.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) it turns to honey (d) very little fizzing
30. 30.⚖️ 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) spoons of baking soda (c) the amount of vinegar (d) the kind of balloon
31. 31.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) rinse with clean water (d) ignore it
32. 32.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
33. 33.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) False (b) True
35. 35.🫧 Which of these is neutral? (a) curd (b) vinegar (c) plain water (d) lemon juice
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we keep it the same (c) we measure it
37. 37.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a balloon (c) a comb (d) a mirror
38. 38.🔍 Which is the odd one out? (a) tamarind water (b) baking soda water (c) vinegar (d) curd
39. 39.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
40. 40.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) keep it away from eyes (d) shake it near your face

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