Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 258 · 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) vinegar (b) detergent water (c) lemon juice (d) curd
2. 2.⚖️ 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
3. 3.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they float apart (d) they react
4. 4.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) baking soda (c) a battery cell (d) a seed
5. 5.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
6. 6.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
7. 7.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a balloon (c) an empty bottle (d) sugar
8. 8.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) shake it near your face (d) put it in your mouth
9. 9.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the bottle got tired (c) the balloon got cold (d) the gas froze
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a funnel or spoon (c) a tray for spills (d) a seed
11. 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a balloon (c) a comb (d) a funnel or spoon
12. 12.🫧 Which of these is a base? (a) orange juice (b) lemon juice (c) sugar water (d) soap solution
13. 13.🧺 Which of these is not needed for the fizzy balloon? (a) a mirror (b) a balloon (c) an empty bottle (d) baking soda
14. 14.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
15. 15.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the kind of balloon
17. 17.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
18. 18.🔍 Which is the odd one out? (a) tamarind water (b) baking soda water (c) vinegar (d) lemon juice
19. 19.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
20. 20.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) carbon dioxide (c) oxygen (d) hydrogen
21. 21.⚖️ 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) the same bottle (c) the kind of balloon (d) the amount of vinegar
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) False (b) True
23. 23.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
24. 24.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a mirror (c) vinegar (d) a magnet
25. 25.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
26. 26.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
27. 27.🫧 Which of these is neutral? (a) tamarind water (b) detergent water (c) sugar water (d) vinegar
28. 28.⚖️ 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
29. 29.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) it turns to honey (c) very little fizzing (d) a huge eruption
30. 30.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) neutral (c) an acid
31. 31.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
32. 32.⚖️ 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
33. 33.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) plain water (d) lemon juice
34. 34.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it grows bigger (c) it turns blue (d) it shrinks
35. 35.True or false: a mirror is needed for the fizzy balloon. (a) False (b) True
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the same bottle (c) size of the balloon
37. 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) vinegar (c) a balloon (d) an empty bottle
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.🫧 Which of these is a base? (a) baking soda water (b) orange juice (c) plain water (d) salt water
40. 40.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False

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