Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 873 · 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 safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) shake it near your face (c) put it in your mouth (d) keep it away from eyes
2. 2.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) plain water (d) curd
3. 3.🫧 Which of these is neutral? (a) lemon juice (b) plain water (c) vinegar (d) orange juice
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) a magnet (d) a balloon
5. 5.🛟 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
6. 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a funnel or spoon (c) a tray for spills (d) sugar
7. 7.⚖️ 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) spoons of baking soda (c) the kind of balloon (d) the amount of vinegar
8. 8.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) sugar (c) vinegar (d) a seed
9. 9.⚖️ 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 keep it the same (c) we change it
10. 10.🔮 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
11. 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
13. 13.🫧 Which of these is an acid? (a) salt water (b) orange juice (c) plain water (d) baking soda water
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a balloon (c) a seed (d) a tray for spills
16. 16.⚖️ 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
17. 17.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) vinegar (c) a mirror (d) a funnel or spoon
18. 18.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) vinegar (b) lemon juice (c) plain water (d) tamarind water
20. 20.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
21. 21.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
22. 22.🫧 Which of these is neutral? (a) sugar water (b) detergent water (c) lemon juice (d) curd
23. 23.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
24. 24.True or false: tamarind water is an acid. (a) True (b) False
25. 25.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
26. 26.🔮 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
27. 27.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) sugar (c) a balloon (d) a magnet
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) the amount of vinegar (c) spoons of baking soda (d) the same bottle
29. 29.⚖️ 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
30. 30.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
31. 31.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
32. 32.True or false: detergent water is a base. (a) False (b) True
33. 33.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
34. 34.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a funnel or spoon (c) a battery cell (d) a comb
35. 35.True or false: plain water is a base. (a) False (b) True
36. 36.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) the balloon bursts (c) a huge eruption (d) it turns to honey
37. 37.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
38. 38.🎈 Why does the balloon blow up? (a) outside air gets in (b) the bottle shrinks (c) gas is made inside (d) vinegar is hot
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) True (b) False
40. 40.True or false: vinegar is an acid. (a) False (b) True

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