Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 468 · 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.⚖️ 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
2. 2.True or false: curd is an acid. (a) True (b) False
3. 3.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) it turns to honey (d) a huge eruption
4. 4.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
5. 5.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the bottle got tired (c) an ingredient ran out (d) the gas froze
6. 6.🫧 Which of these is neutral? (a) detergent water (b) lemon juice (c) soap solution (d) sugar water
7. 7.🫧 Which of these is a base? (a) salt water (b) lemon juice (c) plain water (d) detergent water
8. 8.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
9. 9.True or false: orange juice is a base. (a) False (b) True
10. 10.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a comb (c) a battery cell (d) baking soda
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a funnel or spoon (c) vinegar (d) a comb
12. 12.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) hydrogen (c) oxygen (d) carbon dioxide
13. 13.🎈 Why does the balloon blow up? (a) vinegar is hot (b) the bottle shrinks (c) outside air gets in (d) gas is made inside
14. 14.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
15. 15.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
16. 16.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
17. 17.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
18. 18.True or false: a mirror is not needed for the fizzy balloon. (a) True (b) False
19. 19.⚖️ 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) size of the balloon (d) the amount of vinegar
20. 20.⚖️ 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) spoons of baking soda (d) the same bottle
21. 21.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) an empty bottle (c) vinegar (d) a balloon
22. 22.⚖️ 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 keep it the same (c) we measure it
23. 23.⚖️ 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 change it (c) we keep it the same
24. 24.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) plain water
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a mirror (c) an empty bottle (d) a tray for spills
26. 26.True or false: curd is neutral. (a) False (b) True
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) an empty bottle (c) a magnet (d) a balloon
28. 28.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) an acid (c) a base
29. 29.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) shake it near your face (c) put it in your mouth (d) seal it in a glass jar
30. 30.🔍 Which is the odd one out? (a) tamarind water (b) soap solution (c) lemon juice (d) vinegar
31. 31.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
32. 32.⚖️ 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
33. 33.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rinse with clean water (c) rub it hard (d) ignore it
34. 34.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
35. 35.🫧 Which of these is an acid? (a) salt water (b) sugar water (c) baking soda water (d) tamarind water
36. 36.True or false: sugar is needed for the fizzy balloon. (a) False (b) True
37. 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) sugar (c) vinegar (d) baking soda
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda
39. 39.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) it shrinks (d) there is no change
40. 40.True or false: lemon juice is a base. (a) True (b) False

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