Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 27 · 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.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) baking soda (d) a mirror
2. 2.🔍 Which is the odd one out? (a) curd (b) baking soda water (c) detergent water (d) soap solution
3. 3.🫧 Which of these is neutral? (a) lemon juice (b) detergent water (c) tamarind water (d) plain water
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) spoons of baking soda (c) size of the balloon (d) the amount of vinegar
5. 5.⚖️ 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 keep it the same (c) we measure it
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we keep it the same (c) we change it
7. 7.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) put it in your mouth (d) shake it near your face
8. 8.True or false: curd is an acid. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) vinegar (b) tamarind water (c) sugar water (d) curd
10. 10.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
11. 11.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) rub it hard (c) add baking soda (d) ignore it
12. 12.🫧 Which of these is an acid? (a) salt water (b) sugar water (c) lemon juice (d) soap solution
13. 13.True or false: sugar is needed for the fizzy balloon. (a) False (b) True
14. 14.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
15. 15.🫧 Which of these is neutral? (a) sugar water (b) orange juice (c) baking soda water (d) tamarind water
16. 16.⚖️ 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 amount of vinegar (c) size of the balloon
17. 17.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a balloon (c) a seed (d) a funnel or spoon
19. 19.🫧 Which of these is an acid? (a) detergent water (b) sugar water (c) soap solution (d) orange juice
20. 20.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
21. 21.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) the bottle shrinks (d) gas is made inside
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a balloon (c) a battery cell (d) baking soda
23. 23.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) hydrogen (c) helium (d) carbon dioxide
24. 24.🧺 Which of these is not needed for the fizzy balloon? (a) a mirror (b) an empty bottle (c) vinegar (d) a funnel or spoon
25. 25.🧺 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) sugar (d) a balloon
26. 26.True or false: sugar water is an acid. (a) True (b) False
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) the same bottle (c) size of the balloon (d) the kind of balloon
28. 28.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
29. 29.True or false: salt water is an acid. (a) False (b) True
30. 30.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) vinegar (c) a magnet (d) a mirror
31. 31.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) salt water (d) baking soda water
32. 32.⚖️ 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
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
34. 34.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the same bottle (b) spoons of baking soda (c) size of the balloon
36. 36.🔍 Which is the odd one out? (a) plain water (b) vinegar (c) lemon juice (d) tamarind water
37. 37.True or false: salt water is a base. (a) True (b) False
38. 38.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the bottle got tired (c) an ingredient ran out (d) the balloon got cold
39. 39.⚖️ 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
40. 40.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they react (c) they float apart (d) they freeze

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