Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 663 · 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 plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) the balloon bursts (d) very little fizzing
2. 2.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
3. 3.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
4. 4.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) vinegar (c) sugar (d) baking soda
6. 6.🔍 Which is the odd one out? (a) orange juice (b) tamarind water (c) baking soda water (d) curd
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) the kind of balloon (c) the amount of vinegar (d) the same bottle
8. 8.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) gas is made inside (d) outside air gets in
9. 9.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) rinse with clean water (c) add baking soda (d) ignore it
10. 10.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it shrinks (c) there is no change (d) it grows bigger
11. 11.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a tray for spills (c) sugar (d) a comb
12. 12.⚖️ 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
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we keep it the same (b) we change it (c) we measure it
14. 14.⚖️ 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) True (b) False
15. 15.True or false: a tray for spills is needed for the fizzy balloon. (a) True (b) False
16. 16.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) helium (c) carbon dioxide (d) hydrogen
17. 17.🛟 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
18. 18.🧺 Which of these is needed for the fizzy balloon? (a) a balloon (b) a battery cell (c) a magnet (d) sugar
19. 19.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
20. 20.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
21. 21.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) orange juice (d) baking soda water
22. 22.True or false: sugar water is neutral. (a) True (b) False
23. 23.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
24. 24.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) a battery cell (d) a balloon
26. 26.🫧 Which of these is neutral? (a) lemon juice (b) detergent water (c) sugar water (d) baking soda water
27. 27.🫧 Which of these is an acid? (a) salt water (b) tamarind water (c) baking soda water (d) sugar water
28. 28.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) nothing at all (c) lots of fizzy bubbles (d) it glows in the dark
29. 29.🔍 Which is the odd one out? (a) salt water (b) vinegar (c) plain water (d) sugar water
30. 30.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
31. 31.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False
32. 32.⚖️ 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) the same bottle (d) spoons of baking soda
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
34. 34.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
35. 35.True or false: tamarind water is neutral. (a) True (b) False
36. 36.True or false: tamarind water is a base. (a) False (b) True
37. 37.⚖️ 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 change it (c) we measure it
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) an empty bottle (c) a mirror (d) a tray for spills
39. 39.🧺 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
40. 40.True or false: vinegar is neutral. (a) False (b) True

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