Baking Soda and Vinegar Experiment Worksheet

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

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