Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 523 · 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) sugar (b) an empty bottle (c) baking soda (d) a funnel or spoon
2. 2.🫧 Which of these is neutral? (a) soap solution (b) plain water (c) vinegar (d) orange juice
3. 3.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) False (b) True
5. 5.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) keep it away from eyes (d) put it in your mouth
6. 6.⚖️ 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 keep it the same (c) we change it
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a funnel or spoon (c) a tray for spills (d) a seed
8. 8.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) it turns to honey (d) a huge eruption
9. 9.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
10. 10.🫧 Which of these is an acid? (a) plain water (b) sugar water (c) tamarind water (d) baking soda water
11. 11.🔮 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
12. 12.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only dissolving (c) it is only melting (d) yes, a new gas forms
13. 13.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a battery cell (c) sugar (d) a balloon
14. 14.True or false: soap solution is a base. (a) True (b) False
15. 15.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a mirror (c) a funnel or spoon (d) baking soda
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) vinegar (d) a comb
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) size of the balloon (c) the amount of vinegar (d) the kind of balloon
20. 20.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
21. 21.🔍 Which is the odd one out? (a) orange juice (b) detergent water (c) baking soda water (d) soap solution
22. 22.⚖️ 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
23. 23.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) True (b) False
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the kind of balloon (b) spoons of baking soda (c) the same bottle (d) the amount of vinegar
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
28. 28.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a mirror (c) an empty bottle (d) a balloon
29. 29.⚖️ 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
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
31. 31.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it shrinks (c) it grows bigger (d) it turns blue
32. 32.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
33. 33.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
34. 34.True or false: curd is an acid. (a) True (b) False
35. 35.⚖️ 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
36. 36.True or false: a magnet is needed for the fizzy balloon. (a) False (b) True
37. 37.True or false: sugar water is an acid. (a) False (b) True
38. 38.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a battery cell (c) a seed (d) vinegar
39. 39.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
40. 40.⚖️ 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 kind of balloon (c) size of the balloon

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