Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 544 · 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) it turns blue (d) there is no change
2. 2.⚖️ 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
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) the kind of balloon (c) size of the balloon (d) spoons of baking soda
4. 4.🫧 Which of these is a base? (a) tamarind water (b) soap solution (c) vinegar (d) plain water
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) a funnel or spoon (c) vinegar (d) an empty bottle
6. 6.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) salt water (d) soap solution
7. 7.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) seal it in a glass jar (d) shake it near your face
8. 8.⚖️ 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
9. 9.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) sugar (c) a magnet (d) an empty bottle
10. 10.⚖️ 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
11. 11.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
12. 12.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) an empty bottle (c) a tray for spills (d) a balloon
13. 13.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
14. 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) vinegar (c) a funnel or spoon (d) sugar
15. 15.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) a battery cell (c) a magnet (d) a seed
16. 16.🧺 Which of these is needed for the fizzy balloon? (a) a tray for spills (b) sugar (c) a comb (d) a mirror
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) an empty bottle (c) a funnel or spoon (d) baking soda
18. 18.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) baking soda (c) a funnel or spoon (d) a seed
19. 19.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a battery cell (c) a magnet (d) a balloon
20. 20.True or false: vinegar is a base. (a) False (b) True
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) True (b) False
22. 22.True or false: curd is an acid. (a) True (b) False
23. 23.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) carbon dioxide (c) hydrogen (d) oxygen
24. 24.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
25. 25.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
26. 26.🔍 Which is the odd one out? (a) tamarind water (b) salt water (c) plain water (d) sugar water
27. 27.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
28. 28.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
29. 29.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the same bottle (c) size of the balloon
31. 31.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a seed (c) vinegar (d) a magnet
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
33. 33.True or false: sugar water is neutral. (a) False (b) True
34. 34.⚖️ 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
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the amount of vinegar (b) the kind of balloon (c) spoons of baking soda (d) the same bottle
36. 36.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they react (c) they become magnets (d) they float apart
37. 37.🧺 Which of these is not needed for the fizzy balloon? (a) a magnet (b) baking soda (c) a tray for spills (d) a balloon
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) False (b) True
39. 39.⚖️ 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 kind of balloon
40. 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we keep it the same (c) we change it

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