Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 460 · 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) a funnel or spoon (b) an empty bottle (c) a tray for spills (d) a seed
2. 2.⚖️ 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
3. 3.🔍 Which is the odd one out? (a) sugar water (b) soap solution (c) salt water (d) plain water
4. 4.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
5. 5.⚖️ 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) spoons of baking soda (d) the kind of balloon
6. 6.🔍 Which is the odd one out? (a) vinegar (b) curd (c) orange juice (d) plain water
7. 7.🫧 Which of these is a base? (a) curd (b) soap solution (c) salt water (d) tamarind water
8. 8.⚖️ 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
9. 9.⚖️ 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) True (b) False
10. 10.🫧 Which of these is a base? (a) detergent water (b) tamarind water (c) salt water (d) lemon juice
11. 11.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) outside air gets in (d) the bottle shrinks
12. 12.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) a balloon (c) baking soda (d) vinegar
14. 14.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
15. 15.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) the balloon bursts (c) very little fizzing (d) a huge eruption
16. 16.⚖️ 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
17. 17.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) vinegar (c) a battery cell (d) a mirror
18. 18.🫧 Is salt water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) False (b) True
20. 20.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) it is only dissolving (c) no, nothing changes (d) yes, a new gas forms
21. 21.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
22. 22.🔮 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
23. 23.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
24. 24.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) rinse with clean water (d) add baking soda
25. 25.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
26. 26.⚖️ 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
27. 27.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
28. 28.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a tray for spills (c) a funnel or spoon (d) vinegar
29. 29.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) a base (c) neutral
30. 30.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they freeze (c) they become magnets (d) they react
31. 31.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the gas froze (c) the bottle got tired (d) the balloon got cold
32. 32.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a funnel or spoon (c) a seed (d) sugar
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the amount of vinegar (b) spoons of baking soda (c) the kind of balloon (d) the same bottle
34. 34.True or false: sugar water is neutral. (a) False (b) True
35. 35.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
36. 36.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
37. 37.🫧 Which of these is an acid? (a) curd (b) sugar water (c) baking soda water (d) plain water
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) baking soda (c) an empty bottle (d) a comb
39. 39.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) baking soda (d) a battery cell
40. 40.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a mirror (c) sugar (d) a tray for spills

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