Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 778 · 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: sugar water is an acid. (a) True (b) False
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we change it (c) we measure it
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) a funnel or spoon (c) a balloon (d) a tray for spills
4. 4.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) add baking soda (c) rub it hard (d) ignore it
5. 5.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
6. 6.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) an acid (c) a base
7. 7.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
8. 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) baking soda (c) a balloon (d) a tray for spills
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) False (b) True
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) the same bottle (c) spoons of baking soda
11. 11.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
12. 12.⚖️ 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
13. 13.🫧 Which of these is neutral? (a) salt water (b) curd (c) tamarind water (d) baking soda water
14. 14.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) a huge eruption (c) it turns to honey (d) very little fizzing
15. 15.True or false: lemon juice is a base. (a) False (b) True
16. 16.⚖️ 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 measure it (c) we change it
17. 17.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) helium (c) oxygen (d) carbon dioxide
18. 18.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the bottle got tired (c) the gas froze (d) an ingredient ran out
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a battery cell (c) an empty bottle (d) a tray for spills
20. 20.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
21. 21.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the same bottle (b) the kind of balloon (c) spoons of baking soda (d) size of the balloon
23. 23.🫧 Which of these is a base? (a) lemon juice (b) vinegar (c) detergent water (d) salt water
24. 24.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a battery cell (c) a magnet (d) a balloon
25. 25.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
26. 26.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) there is no change (c) it shrinks (d) it grows bigger
27. 27.🫧 Is plain water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
28. 28.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) an empty bottle (c) a tray for spills (d) sugar
29. 29.🫧 Which of these is an acid? (a) detergent water (b) sugar water (c) plain water (d) curd
30. 30.🧺 Which of these is not needed for the fizzy balloon? (a) a magnet (b) an empty bottle (c) baking soda (d) a balloon
31. 31.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) a base (c) neutral
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) the amount of vinegar (c) spoons of baking soda
33. 33.⚖️ 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
34. 34.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) the bottle shrinks (d) gas is made inside
35. 35.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) shake it near your face (c) keep it away from eyes (d) put it in your mouth
36. 36.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
37. 37.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
38. 38.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) sugar (c) a magnet (d) vinegar
39. 39.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) baking soda water (d) salt water
40. 40.True or false: lemon juice is neutral. (a) False (b) True

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