Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 98 · 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: vinegar is a base. (a) True (b) False
2. 2.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) put it in your mouth (c) shake it near your face (d) keep it away from eyes
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the amount of vinegar (b) spoons of baking soda (c) the kind of balloon (d) size of the balloon
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) vinegar (c) a funnel or spoon (d) a tray for spills
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) an empty bottle (c) vinegar (d) a balloon
6. 6.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
7. 7.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a balloon (c) a seed (d) an empty bottle
8. 8.🫧 Is curd an acid, a base or neutral? (a) an acid (b) neutral (c) a base
9. 9.🫧 Which of these is an acid? (a) sugar water (b) salt water (c) baking soda water (d) orange juice
10. 10.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
11. 11.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) it is only dissolving (c) it is only melting (d) no, nothing changes
12. 12.🫧 Which of these is neutral? (a) vinegar (b) orange juice (c) plain water (d) detergent water
13. 13.True or false: soap solution is a base. (a) False (b) True
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we change it (c) we measure it
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we keep it the same (c) we change it
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we change it (c) we keep it the same
17. 17.🔍 Which is the odd one out? (a) lemon juice (b) tamarind water (c) curd (d) sugar water
18. 18.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
19. 19.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it grows bigger (c) it turns blue (d) there is no change
20. 20.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a battery cell (c) a balloon (d) a tray for spills
21. 21.🫧 Which of these is a base? (a) plain water (b) baking soda water (c) tamarind water (d) lemon juice
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) baking soda (c) vinegar (d) a comb
23. 23.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the balloon got cold (c) the gas froze (d) an ingredient ran out
24. 24.True or false: a mirror is needed for the fizzy balloon. (a) False (b) True
25. 25.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) add baking soda (d) rinse with clean water
26. 26.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a comb (c) an empty bottle (d) a magnet
27. 27.🫧 Which of these is a base? (a) soap solution (b) curd (c) tamarind water (d) lemon juice
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) the same bottle (c) spoons of baking soda (d) the kind of balloon
29. 29.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
30. 30.True or false: detergent water is a base. (a) True (b) False
31. 31.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
32. 32.True or false: tamarind water is an acid. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) soap solution (d) plain water
34. 34.🫧 Is plain water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
35. 35.True or false: a magnet is needed for the fizzy balloon. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) salt water (d) baking soda water
37. 37.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
38. 38.🫧 Which of these is a base? (a) vinegar (b) orange juice (c) tamarind water (d) detergent water
39. 39.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
40. 40.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they react (c) they float apart (d) they become magnets

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