Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 307 · 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.🛟 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
2. 2.⚖️ 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) the same bottle (c) spoons of baking soda (d) size of the balloon
3. 3.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) baking soda (c) vinegar (d) a mirror
4. 4.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) gas is made inside (d) the bottle shrinks
5. 5.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a seed (c) a comb (d) baking soda
6. 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a battery cell (c) a funnel or spoon (d) a balloon
7. 7.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
8. 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) an empty bottle (c) a funnel or spoon (d) a seed
9. 9.⚖️ 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
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a mirror (c) baking soda (d) an empty bottle
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) an empty bottle (c) sugar (d) baking soda
12. 12.🛟 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
13. 13.True or false: curd is an acid. (a) False (b) True
14. 14.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) a base (c) neutral
15. 15.🔍 Which is the odd one out? (a) salt water (b) vinegar (c) curd (d) tamarind water
16. 16.True or false: baking soda water is neutral. (a) False (b) True
17. 17.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
18. 18.True or false: baking soda water is an acid. (a) True (b) False
19. 19.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a comb (c) a magnet (d) a balloon
20. 20.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the balloon got cold (c) the gas froze (d) the bottle got tired
21. 21.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) hydrogen (c) helium (d) carbon dioxide
22. 22.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they float apart (c) they become magnets (d) they freeze
23. 23.⚖️ 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
24. 24.🫧 Which of these is an acid? (a) baking soda water (b) detergent water (c) orange juice (d) plain water
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) sugar (d) a balloon
26. 26.⚖️ 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
27. 27.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
28. 28.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we change it (c) we keep it the same
30. 30.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
31. 31.⚖️ 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
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the amount of vinegar
33. 33.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it shrinks (c) it turns blue (d) there is no change
34. 34.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
35. 35.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
36. 36.True or false: soap solution is an acid. (a) True (b) False
37. 37.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
38. 38.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
39. 39.🫧 Which of these is a base? (a) lemon juice (b) sugar water (c) tamarind water (d) detergent water
40. 40.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False

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