Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 578 · 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.🫧 Which of these is an acid? (a) curd (b) sugar water (c) baking soda water (d) salt water
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we measure it (c) we keep it the same
3. 3.True or false: a magnet is needed for the fizzy balloon. (a) False (b) True
4. 4.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the gas froze (d) the bottle got tired
5. 5.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
6. 6.⚖️ 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 amount of vinegar
7. 7.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) orange juice (d) salt water
9. 9.⚖️ 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
10. 10.True or false: baking soda water is neutral. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) curd (b) orange juice (c) sugar water (d) tamarind water
12. 12.🛟 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
13. 13.🫧 Is curd an acid, a base or neutral? (a) neutral (b) an acid (c) a base
14. 14.True or false: lemon juice is an acid. (a) True (b) False
15. 15.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a battery cell (c) a mirror (d) vinegar
16. 16.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
17. 17.🔍 Which is the odd one out? (a) salt water (b) soap solution (c) plain water (d) sugar water
18. 18.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) baking soda (c) a battery cell (d) vinegar
19. 19.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
20. 20.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
21. 21.⚖️ 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) size of the balloon (c) the same bottle (d) the kind of balloon
22. 22.🫧 Which of these is an acid? (a) salt water (b) sugar water (c) baking soda water (d) tamarind water
23. 23.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) an empty bottle (c) a battery cell (d) a magnet
24. 24.🫧 Which of these is a base? (a) orange juice (b) soap solution (c) salt water (d) lemon juice
25. 25.True or false: plain water is an acid. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) baking soda water (b) orange juice (c) tamarind water (d) lemon juice
27. 27.True or false: tamarind water is a base. (a) False (b) True
28. 28.🫧 Which of these is neutral? (a) detergent water (b) baking soda water (c) lemon juice (d) sugar water
29. 29.⚖️ 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
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) the amount of vinegar (c) size of the balloon (d) the kind of balloon
31. 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a balloon (c) vinegar (d) sugar
32. 32.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) lemon juice (d) plain water
33. 33.🔍 Which is the odd one out? (a) salt water (b) tamarind water (c) lemon juice (d) vinegar
34. 34.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it shrinks (c) it turns blue (d) it grows bigger
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
36. 36.⚖️ 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 measure it (c) we keep it the same
37. 37.True or false: vinegar is a base. (a) True (b) False
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a funnel or spoon (c) a balloon (d) a battery cell
39. 39.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) seal it in a glass jar (d) shake it near your face
40. 40.True or false: soap solution is neutral. (a) False (b) True

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