Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 43 · 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.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a battery cell (c) vinegar (d) a balloon
2. 2.True or false: lemon juice is neutral. (a) False (b) True
3. 3.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) a huge eruption (c) it turns to honey (d) the balloon bursts
4. 4.🔍 Which is the odd one out? (a) salt water (b) plain water (c) sugar water (d) detergent water
5. 5.🛟 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
6. 6.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) no, nothing changes (c) yes, a new gas forms (d) it is only dissolving
7. 7.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a magnet (c) an empty bottle (d) a seed
8. 8.🔍 Which is the odd one out? (a) curd (b) baking soda water (c) vinegar (d) orange juice
9. 9.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
10. 10.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
11. 11.⚖️ 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
12. 12.⚖️ 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 kind of balloon (d) spoons of baking soda
13. 13.True or false: curd is a base. (a) True (b) False
14. 14.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a tray for spills (c) a balloon (d) a seed
15. 15.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) an empty bottle (c) baking soda (d) a tray for spills
16. 16.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
17. 17.🔮 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
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the same bottle (b) size of the balloon (c) spoons of baking soda
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) baking soda (c) a balloon (d) a comb
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda
21. 21.🫧 Which of these is a base? (a) salt water (b) orange juice (c) baking soda water (d) sugar water
22. 22.⚖️ 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 measure it (c) we keep it the same
23. 23.🫧 Which of these is neutral? (a) soap solution (b) lemon juice (c) salt water (d) curd
24. 24.🧺 Which of these is needed for the fizzy balloon? (a) a funnel or spoon (b) a mirror (c) a battery cell (d) a comb
25. 25.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
26. 26.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) sugar (d) a tray for spills
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a seed (c) vinegar (d) a balloon
28. 28.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
29. 29.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a battery cell (c) a comb (d) a magnet
30. 30.⚖️ 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
31. 31.True or false: a magnet is needed for the fizzy balloon. (a) False (b) True
32. 32.🫧 Which of these is a base? (a) vinegar (b) detergent water (c) curd (d) lemon juice
33. 33.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) a magnet (b) an empty bottle (c) vinegar (d) baking soda
35. 35.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a battery cell (c) baking soda (d) a mirror
36. 36.🫧 Which of these is neutral? (a) vinegar (b) soap solution (c) tamarind water (d) plain water
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we keep it the same (c) we change it
38. 38.🧺 Which of these is not needed for the fizzy balloon? (a) sugar (b) a funnel or spoon (c) baking soda (d) a balloon
39. 39.🎈 Why does the balloon blow up? (a) gas is made inside (b) the bottle shrinks (c) outside air gets in (d) vinegar is hot
40. 40.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the gas froze (d) the bottle got tired

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