Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 68 · 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.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) True (b) False
2. 2.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a mirror (c) a seed (d) a balloon
3. 3.True or false: sugar water is neutral. (a) True (b) False
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we change it (c) we measure it
5. 5.True or false: a balloon is needed for the fizzy balloon. (a) False (b) True
6. 6.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) sugar (c) a mirror (d) an empty bottle
7. 7.True or false: sugar is not needed for the fizzy balloon. (a) True (b) False
8. 8.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
9. 9.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the gas froze (c) the balloon got cold (d) an ingredient ran out
10. 10.🔍 Which is the odd one out? (a) vinegar (b) curd (c) tamarind water (d) sugar water
11. 11.True or false: vinegar is an acid. (a) True (b) False
12. 12.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) yes, a new gas forms (c) it is only melting (d) no, nothing changes
13. 13.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
14. 14.⚖️ 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
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) sugar (c) baking soda (d) vinegar
16. 16.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
17. 17.⚖️ 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
18. 18.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) add baking soda (c) ignore it (d) rub it hard
19. 19.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) lemon juice (b) tamarind water (c) curd (d) baking soda water
21. 21.🫧 Which of these is an acid? (a) sugar water (b) soap solution (c) detergent water (d) vinegar
22. 22.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) an acid (c) a base
23. 23.🫧 Which of these is neutral? (a) plain water (b) soap solution (c) vinegar (d) detergent water
24. 24.🫧 Which of these is a base? (a) lemon juice (b) tamarind water (c) soap solution (d) curd
25. 25.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it grows bigger (c) it turns blue (d) it shrinks
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we measure it (c) we change it
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) an empty bottle (c) a magnet (d) a tray for spills
28. 28.🫧 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
29. 29.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
30. 30.🔮 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
31. 31.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) put it in your mouth (d) keep it away from eyes
32. 32.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
33. 33.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) baking soda (c) a battery cell (d) an empty bottle
35. 35.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
36. 36.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) outside air gets in (d) gas is made inside
37. 37.🫧 Which of these is an acid? (a) soap solution (b) tamarind water (c) baking soda water (d) detergent water
38. 38.🫧 Which of these is an acid? (a) soap solution (b) salt water (c) detergent water (d) curd
39. 39.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
40. 40.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True

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