Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 400 · 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.🫧 Is plain water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
2. 2.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a comb (c) an empty bottle (d) sugar
3. 3.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) add baking soda (d) rinse with clean water
4. 4.🫧 Which of these is an acid? (a) salt water (b) plain water (c) baking soda water (d) orange juice
5. 5.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) an ingredient ran out (c) the balloon got cold (d) the bottle got tired
6. 6.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) seal it in a glass jar (d) keep it away from eyes
7. 7.⚖️ 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) the same bottle (d) spoons of baking soda
8. 8.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
9. 9.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it grows bigger (d) it turns blue
10. 10.🫧 Which of these is an acid? (a) detergent water (b) plain water (c) lemon juice (d) sugar water
11. 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we keep it the same (c) we measure it
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the same bottle (b) spoons of baking soda (c) size of the balloon
13. 13.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
14. 14.🔮 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
15. 15.⚖️ 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 amount of vinegar (c) the same bottle (d) the kind of balloon
16. 16.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a seed (c) a tray for spills (d) baking soda
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a funnel or spoon (c) a mirror (d) a tray for spills
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
20. 20.🫧 Which of these is a base? (a) salt water (b) baking soda water (c) tamarind water (d) curd
21. 21.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a mirror (c) a comb (d) a funnel or spoon
22. 22.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) curd (b) vinegar (c) soap solution (d) orange juice
24. 24.True or false: sugar is not needed for the fizzy balloon. (a) True (b) False
25. 25.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
26. 26.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) sugar (c) an empty bottle (d) vinegar
28. 28.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
29. 29.True or false: orange juice is an acid. (a) True (b) False
30. 30.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
31. 31.⚖️ 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) True (b) False
32. 32.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a comb (c) baking soda (d) a battery cell
33. 33.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a magnet (c) a funnel or spoon (d) a tray for spills
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a balloon (c) baking soda (d) a magnet
35. 35.True or false: sugar water is an acid. (a) False (b) True
36. 36.🫧 Which of these is neutral? (a) lemon juice (b) baking soda water (c) vinegar (d) sugar water
37. 37.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) outside air gets in (c) vinegar is hot (d) gas is made inside
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) an empty bottle (c) a tray for spills (d) a seed
39. 39.⚖️ 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
40. 40.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True

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