Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 693 · 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.🫧 Which of these is a base? (a) curd (b) plain water (c) tamarind water (d) soap solution
2. 2.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) vinegar (c) a seed (d) a balloon
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) True (b) False
4. 4.True or false: orange juice is neutral. (a) True (b) False
5. 5.🫧 Is plain water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
6. 6.⚖️ 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
7. 7.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
8. 8.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
9. 9.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) the bottle got tired (d) an ingredient ran out
10. 10.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
11. 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
12. 12.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) a balloon (d) a mirror
13. 13.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it shrinks (c) there is no change (d) it grows bigger
14. 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) a balloon (d) sugar
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we measure it (c) we change it
16. 16.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
17. 17.🔍 Which is the odd one out? (a) tamarind water (b) baking soda water (c) soap solution (d) detergent water
18. 18.🛟 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
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a balloon (c) a magnet (d) an empty bottle
20. 20.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) put it in your mouth (d) shake it near your face
23. 23.🫧 Is curd an acid, a base or neutral? (a) an acid (b) a base (c) neutral
24. 24.🫧 Which of these is a base? (a) sugar water (b) orange juice (c) baking soda water (d) plain water
25. 25.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
26. 26.🔍 Which is the odd one out? (a) curd (b) lemon juice (c) vinegar (d) salt water
27. 27.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
28. 28.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they freeze (c) they float apart (d) they become magnets
29. 29.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
30. 30.⚖️ 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) the kind of balloon (c) spoons of baking soda (d) size of the balloon
31. 31.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a balloon (c) a battery cell (d) a comb
32. 32.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a tray for spills (c) a battery cell (d) sugar
33. 33.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) a base (c) neutral
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) vinegar (b) soap solution (c) baking soda water (d) detergent water
36. 36.True or false: sugar water is an acid. (a) True (b) False
37. 37.🫧 Which of these is an acid? (a) vinegar (b) sugar water (c) soap solution (d) detergent water
38. 38.🔍 Which is the odd one out? (a) vinegar (b) plain water (c) tamarind water (d) lemon juice
39. 39.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a battery cell (c) a seed (d) vinegar
40. 40.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False

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