Baking Soda and Vinegar Experiment Worksheet

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

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