Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 510 · 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.⚖️ 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
2. 2.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
3. 3.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) an acid (c) neutral
4. 4.⚖️ 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
5. 5.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) size of the balloon (c) the amount of vinegar (d) the kind of balloon
7. 7.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the bottle got tired (c) an ingredient ran out (d) the gas froze
8. 8.🔍 Which is the odd one out? (a) tamarind water (b) baking soda water (c) curd (d) vinegar
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) spoons of baking soda (c) size of the balloon (d) the amount of vinegar
10. 10.True or false: sugar water is neutral. (a) True (b) False
11. 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a tray for spills (c) vinegar (d) a funnel or spoon
12. 12.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) soap solution (d) orange juice
13. 13.🫧 Is curd an acid, a base or neutral? (a) an acid (b) a base (c) neutral
14. 14.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they become magnets (c) they freeze (d) they float apart
15. 15.⚖️ 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
16. 16.True or false: detergent water is an acid. (a) True (b) False
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a tray for spills (c) an empty bottle (d) a battery cell
18. 18.🫧 Which of these is an acid? (a) lemon juice (b) baking soda water (c) soap solution (d) sugar water
19. 19.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) rinse with clean water (d) add baking soda
20. 20.🔮 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
21. 21.True or false: lemon juice is an acid. (a) False (b) True
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we change it (c) we keep it the same
23. 23.🫧 Which of these is a base? (a) curd (b) tamarind water (c) orange juice (d) soap solution
24. 24.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a funnel or spoon (c) a comb (d) a tray for spills
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a seed (c) a balloon (d) baking soda
26. 26.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
27. 27.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
28. 28.⚖️ 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
29. 29.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
30. 30.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) seal it in a glass jar (c) put it in your mouth (d) shake it near your face
31. 31.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False
32. 32.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
33. 33.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
34. 34.🔍 Which is the odd one out? (a) soap solution (b) tamarind water (c) baking soda water (d) detergent water
35. 35.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) an empty bottle (c) vinegar (d) a tray for spills
36. 36.🔍 Which is the odd one out? (a) lemon juice (b) soap solution (c) baking soda water (d) detergent water
37. 37.True or false: vinegar is an acid. (a) True (b) False
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) a balloon (c) vinegar (d) an empty bottle
39. 39.🫧 Which of these is neutral? (a) tamarind water (b) lemon juice (c) soap solution (d) plain water
40. 40.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) vinegar (c) a tray for spills (d) baking soda

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