Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 650 · 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.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) it turns to honey (d) a huge eruption
2. 2.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) a tray for spills (c) an empty bottle (d) vinegar
3. 3.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a tray for spills (c) sugar (d) a comb
4. 4.⚖️ 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 change it (c) we keep it the same
5. 5.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it shrinks (c) it turns blue (d) there is no change
6. 6.🔍 Which is the odd one out? (a) sugar water (b) detergent water (c) plain water (d) salt water
7. 7.🫧 Which of these is neutral? (a) plain water (b) tamarind water (c) soap solution (d) detergent water
8. 8.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they float apart (c) they react (d) they become magnets
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) spoons of baking soda (c) the same bottle (d) the amount of vinegar
10. 10.True or false: salt water is neutral. (a) True (b) False
11. 11.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
12. 12.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the bottle got tired (c) an ingredient ran out (d) the balloon got cold
13. 13.🫧 Is salt water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
14. 14.True or false: plain water is an acid. (a) True (b) False
15. 15.🫧 Which of these is neutral? (a) lemon juice (b) salt water (c) detergent water (d) tamarind water
16. 16.🧺 Which of these is not needed for the fizzy balloon? (a) a battery cell (b) an empty bottle (c) a tray for spills (d) a balloon
17. 17.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
18. 18.True or false: vinegar is a base. (a) False (b) True
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) vinegar (c) baking soda (d) a seed
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) False (b) True
21. 21.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
22. 22.🫧 Which of these is a base? (a) detergent water (b) lemon juice (c) sugar water (d) vinegar
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a tray for spills (c) baking soda (d) a mirror
24. 24.🫧 Which of these is an acid? (a) salt water (b) sugar water (c) soap solution (d) tamarind water
25. 25.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a mirror (c) a funnel or spoon (d) vinegar
26. 26.⚖️ 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) spoons of baking soda (d) the amount of vinegar
27. 27.🛟 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
28. 28.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) sugar water (d) detergent water
29. 29.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we change it (b) we keep it the same (c) we measure it
31. 31.⚖️ 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
32. 32.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
33. 33.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) tamarind water (b) plain water (c) orange juice (d) lemon juice
35. 35.⚖️ 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 measure it (c) we keep it the same
36. 36.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
37. 37.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a funnel or spoon (c) a seed (d) a battery cell
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) salt water (d) baking soda water
40. 40.⚖️ 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

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