Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 180 · 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 of these is not needed for the fizzy balloon? (a) vinegar (b) a battery cell (c) a tray for spills (d) baking soda
2. 2.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
3. 3.🫧 Is vinegar 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? What do we do with “the kind of balloon”? (a) we change it (b) we keep it the same (c) we measure it
5. 5.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a magnet (c) an empty bottle (d) a seed
6. 6.True or false: plain water is neutral. (a) True (b) False
7. 7.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
8. 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) baking soda (c) a magnet (d) a balloon
9. 9.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it turns blue (c) there is no change (d) it grows bigger
10. 10.🫧 Is curd 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? True or false: spoons of baking soda is kept the same. (a) False (b) True
12. 12.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
13. 13.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) yes, a new gas forms (c) it is only dissolving (d) it is only melting
14. 14.⚖️ 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 same bottle (c) the amount of vinegar (d) spoons of baking soda
15. 15.⚖️ 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 change it (c) we keep it the same
16. 16.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) a huge eruption (d) it turns to honey
17. 17.⚖️ 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) size of the balloon (d) the kind of balloon
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a balloon (c) vinegar (d) a battery cell
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) vinegar (c) a comb (d) a funnel or spoon
20. 20.True or false: baking soda water is an acid. (a) False (b) True
21. 21.True or false: soap solution is a base. (a) True (b) False
22. 22.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) gas is made inside (d) outside air gets in
23. 23.⚖️ 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
24. 24.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) rinse with clean water (c) ignore it (d) add baking soda
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) False (b) True
26. 26.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
27. 27.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
28. 28.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) an empty bottle (c) a comb (d) a balloon
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
30. 30.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) seal it in a glass jar (d) shake it near your face
31. 31.⚖️ 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
32. 32.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the bottle got tired (c) the balloon got cold (d) an ingredient ran out
33. 33.⚖️ 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
34. 34.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
35. 35.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
36. 36.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
37. 37.🔍 Which is the odd one out? (a) tamarind water (b) vinegar (c) lemon juice (d) baking soda water
38. 38.⚖️ 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 measure it (c) we keep it the same
39. 39.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) detergent water (d) salt water
40. 40.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a magnet (c) a comb (d) a tray for spills

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