Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 377 · 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 is the odd one out? (a) plain water (b) curd (c) salt water (d) sugar water
2. 2.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it grows bigger (d) it turns blue
3. 3.🫧 Which of these is a base? (a) tamarind water (b) sugar water (c) orange juice (d) baking soda water
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a mirror (c) baking soda (d) a tray for spills
5. 5.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) neutral (c) a base
6. 6.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
7. 7.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) a battery cell (c) a seed (d) sugar
8. 8.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) add baking soda (c) rub it hard (d) rinse with clean water
9. 9.⚖️ 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 amount of vinegar (d) the kind of balloon
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) baking soda (c) a balloon (d) a seed
11. 11.🎈 Why does the balloon blow up? (a) outside air gets in (b) the bottle shrinks (c) vinegar is hot (d) gas is made inside
12. 12.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
13. 13.🫧 Which of these is neutral? (a) plain water (b) baking soda water (c) lemon juice (d) tamarind water
14. 14.⚖️ 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
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the amount of vinegar (c) size of the balloon (d) the same bottle
16. 16.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
17. 17.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) carbon dioxide (c) oxygen (d) hydrogen
18. 18.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
19. 19.⚖️ 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
20. 20.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
21. 21.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
22. 22.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a funnel or spoon (c) a magnet (d) a battery cell
23. 23.⚖️ 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) True (b) False
24. 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) baking soda (d) a comb
25. 25.True or false: orange juice is a base. (a) True (b) False
26. 26.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
27. 27.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
28. 28.🫧 Which of these is a base? (a) salt water (b) vinegar (c) soap solution (d) tamarind water
29. 29.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) keep it away from eyes (d) shake it near your face
30. 30.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) a base (c) neutral
31. 31.True or false: soap solution is a base. (a) False (b) True
32. 32.🧺 Which of these is needed for the fizzy balloon? (a) a balloon (b) sugar (c) a seed (d) a comb
33. 33.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a balloon (c) a tray for spills (d) a battery cell
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) vinegar (c) a seed (d) a balloon
35. 35.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a tray for spills (c) a balloon (d) a mirror
36. 36.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.🫧 Which of these is an acid? (a) baking soda water (b) salt water (c) soap solution (d) vinegar
39. 39.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
40. 40.⚖️ 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

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