Baking Soda and Vinegar Experiment Worksheet

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

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