Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 500 · 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: sugar is needed for the fizzy balloon. (a) False (b) True
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) True (b) False
3. 3.🎈 Why does the balloon blow up? (a) gas is made inside (b) the bottle shrinks (c) vinegar is hot (d) outside air gets in
4. 4.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
5. 5.🔍 Which is the odd one out? (a) curd (b) vinegar (c) lemon juice (d) detergent water
6. 6.True or false: detergent water is neutral. (a) False (b) True
7. 7.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) rub it hard (c) ignore it (d) add baking soda
8. 8.⚖️ 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 kind of balloon (c) the same bottle (d) spoons of baking soda
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) True (b) False
10. 10.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
11. 11.True or false: sugar water is neutral. (a) False (b) True
12. 12.🔮 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
13. 13.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) an ingredient ran out (c) the gas froze (d) the balloon got cold
14. 14.🫧 Which of these is an acid? (a) salt water (b) baking soda water (c) detergent water (d) lemon juice
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
17. 17.⚖️ 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 change it (c) we measure it
18. 18.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
19. 19.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a battery cell (c) vinegar (d) a comb
20. 20.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
21. 21.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a battery cell (c) a balloon (d) a funnel or spoon
23. 23.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) sugar (c) a comb (d) baking soda
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) size of the balloon (c) the kind of balloon (d) the amount of vinegar
25. 25.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) salt water
26. 26.🫧 Which of these is an acid? (a) tamarind water (b) sugar water (c) salt water (d) soap solution
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon
28. 28.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
29. 29.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it grows bigger (c) there is no change (d) it turns blue
30. 30.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a battery cell (c) sugar (d) a balloon
31. 31.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
32. 32.⚖️ 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
33. 33.True or false: a funnel or spoon is needed for the fizzy balloon. (a) True (b) False
34. 34.🛟 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
35. 35.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they react (c) they float apart (d) they freeze
36. 36.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a magnet (c) a balloon (d) baking soda
37. 37.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) sugar (c) baking soda (d) a funnel or spoon
40. 40.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed

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