Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 137 · 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 same bottle is kept the same. (a) True (b) False
2. 2.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it turns blue (c) it grows bigger (d) there is no change
3. 3.🔍 Which is the odd one out? (a) lemon juice (b) salt water (c) vinegar (d) curd
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) True (b) False
5. 5.True or false: plain water is a base. (a) False (b) True
6. 6.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
7. 7.⚖️ 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
8. 8.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
9. 9.🫧 Which of these is an acid? (a) plain water (b) baking soda water (c) lemon juice (d) sugar water
10. 10.True or false: baking soda water is a base. (a) False (b) True
11. 11.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) carbon dioxide (c) oxygen (d) hydrogen
12. 12.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) a base (c) neutral
13. 13.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) outside air gets in (c) vinegar is hot (d) gas is made inside
14. 14.🧺 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 battery cell
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) False (b) True
16. 16.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
17. 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we keep it the same (c) we measure it
18. 18.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
19. 19.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) vinegar (c) a magnet (d) a balloon
20. 20.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a comb (c) a seed (d) sugar
21. 21.🛟 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
22. 22.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
23. 23.🫧 Which of these is an acid? (a) soap solution (b) orange juice (c) plain water (d) salt water
24. 24.🔍 Which is the odd one out? (a) detergent water (b) lemon juice (c) curd (d) tamarind water
25. 25.⚖️ 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) size of the balloon (c) spoons of baking soda (d) the amount of vinegar
26. 26.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
27. 27.True or false: detergent water is neutral. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) salt water (b) plain water (c) soap solution (d) sugar water
29. 29.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
30. 30.True or false: plain water is neutral. (a) False (b) True
31. 31.🫧 Which of these is a base? (a) plain water (b) soap solution (c) tamarind water (d) lemon juice
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 same bottle
33. 33.⚖️ 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 measure it (c) we change it
34. 34.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) vinegar (d) soap solution
35. 35.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
36. 36.True or false: lemon juice is a base. (a) False (b) True
37. 37.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
38. 38.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) add baking soda (c) ignore it (d) rinse with clean water
39. 39.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) no, nothing changes (c) yes, a new gas forms (d) it is only dissolving
40. 40.True or false: a funnel or spoon is needed for the fizzy balloon. (a) True (b) False

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