Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 309 · 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 kept the same. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) curd (b) plain water (c) sugar water (d) salt water
3. 3.⚖️ 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) the amount of vinegar (d) spoons of baking soda
4. 4.⚖️ 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 change it (c) we measure it
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a mirror (c) an empty bottle (d) vinegar
6. 6.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) put it in your mouth (c) keep it away from eyes (d) shake it near your face
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a magnet (c) baking soda (d) a funnel or spoon
8. 8.⚖️ 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 same bottle
9. 9.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) a balloon (c) a tray for spills (d) vinegar
10. 10.True or false: curd is neutral. (a) True (b) False
11. 11.True or false: an empty bottle is needed for the fizzy balloon. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) plain water (b) baking soda water (c) salt water (d) sugar water
13. 13.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
14. 14.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) add baking soda (c) rinse with clean water (d) ignore it
15. 15.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) the bottle got tired (d) an ingredient ran out
16. 16.🔍 Which is the odd one out? (a) lemon juice (b) salt water (c) orange juice (d) vinegar
17. 17.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a seed (c) a balloon (d) a battery cell
18. 18.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) a huge eruption (c) it turns to honey (d) the balloon bursts
19. 19.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) sugar water (d) soap solution
20. 20.🔍 Which is the odd one out? (a) soap solution (b) plain water (c) detergent water (d) baking soda water
21. 21.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) False (b) True
23. 23.True or false: detergent water is a base. (a) True (b) False
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the kind of balloon
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we keep it the same (c) we change it
26. 26.True or false: vinegar is a base. (a) True (b) False
27. 27.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
28. 28.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
29. 29.🫧 Which of these is a base? (a) tamarind water (b) detergent water (c) salt water (d) curd
30. 30.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a mirror (c) a seed (d) a magnet
31. 31.🫧 Which of these is an acid? (a) lemon juice (b) soap solution (c) baking soda water (d) plain water
32. 32.True or false: tamarind water is a base. (a) False (b) True
33. 33.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
34. 34.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they float apart (d) they react
35. 35.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) there is no change (c) it shrinks (d) it grows bigger
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) orange juice (b) soap solution (c) detergent water (d) baking soda water
38. 38.🧺 Which of these is not needed for the fizzy balloon? (a) sugar (b) baking soda (c) vinegar (d) a balloon
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
40. 40.⚖️ 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) the kind of balloon (c) spoons of baking soda (d) the amount of vinegar

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