Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 667 · 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.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it shrinks (c) there is no change (d) it turns blue
2. 2.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
3. 3.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a seed (c) a funnel or spoon (d) a magnet
4. 4.🎈 Why does the balloon blow up? (a) gas is made inside (b) outside air gets in (c) vinegar is hot (d) the bottle shrinks
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) vinegar (c) a balloon (d) a seed
6. 6.🔍 Which is the odd one out? (a) tamarind water (b) curd (c) orange juice (d) plain water
7. 7.⚖️ 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
8. 8.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
9. 9.🫧 Which of these is an acid? (a) orange juice (b) baking soda water (c) salt water (d) sugar water
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a funnel or spoon (c) baking soda (d) a battery cell
11. 11.⚖️ 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 keep it the same (c) we change it
12. 12.🫧 Which of these is a base? (a) tamarind water (b) sugar water (c) baking soda water (d) lemon juice
13. 13.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) rinse with clean water (d) add baking soda
14. 14.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a tray for spills (c) a magnet (d) an empty bottle
16. 16.⚖️ 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
17. 17.True or false: lemon juice is neutral. (a) True (b) False
18. 18.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) seal it in a glass jar (d) keep it away from eyes
19. 19.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
20. 20.⚖️ 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
21. 21.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a comb (c) a balloon (d) a mirror
22. 22.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) soap solution (d) salt water
23. 23.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) baking soda (c) a comb (d) a funnel or spoon
24. 24.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they freeze (c) they become magnets (d) they react
25. 25.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) vinegar (c) a magnet (d) a mirror
26. 26.🫧 Which of these is an acid? (a) sugar water (b) soap solution (c) vinegar (d) baking soda water
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
28. 28.True or false: baking soda water is a base. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) salt water (d) detergent water
30. 30.⚖️ 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
31. 31.🫧 Which of these is an acid? (a) plain water (b) tamarind water (c) salt water (d) baking soda water
32. 32.🫧 Which of these is neutral? (a) tamarind water (b) soap solution (c) salt water (d) baking soda water
33. 33.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) a balloon (c) a tray for spills (d) a funnel or spoon
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) False (b) True
35. 35.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the bottle got tired (c) an ingredient ran out (d) the gas froze
36. 36.True or false: vinegar is neutral. (a) False (b) True
37. 37.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True
38. 38.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
39. 39.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
40. 40.🫧 Which of these is a base? (a) plain water (b) detergent water (c) salt water (d) tamarind water

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