Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 172 · 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 magnet (b) a battery cell (c) a funnel or spoon (d) a comb
2. 2.📘 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
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) baking soda (c) a tray for spills (d) a seed
4. 4.🫧 Which of these is neutral? (a) baking soda water (b) curd (c) detergent water (d) salt water
5. 5.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
6. 6.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) baking soda (c) a balloon (d) a comb
7. 7.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) ignore it (c) add baking soda (d) rub it hard
8. 8.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a balloon (c) vinegar (d) a battery cell
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the kind of balloon (b) spoons of baking soda (c) the same bottle (d) size of the balloon
10. 10.⚖️ 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 keep it the same (c) we change it
11. 11.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the gas froze (d) the bottle got tired
12. 12.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
13. 13.🫧 Which of these is an acid? (a) detergent water (b) baking soda water (c) plain water (d) orange juice
14. 14.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
15. 15.🔍 Which is the odd one out? (a) salt water (b) vinegar (c) lemon juice (d) tamarind water
16. 16.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it grows bigger (c) it turns blue (d) there is no change
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a mirror (c) a balloon (d) vinegar
18. 18.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
19. 19.🛟 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
20. 20.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
21. 21.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) True (b) False
23. 23.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) helium (c) carbon dioxide (d) hydrogen
24. 24.⚖️ 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) spoons of baking soda
25. 25.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a comb (c) a battery cell (d) baking soda
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.⚖️ 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 keep it the same (c) we change it
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) plain water (d) tamarind water
30. 30.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
31. 31.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
32. 32.🎈 Why does the balloon blow up? (a) gas is made inside (b) the bottle shrinks (c) outside air gets in (d) vinegar is hot
33. 33.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) True (b) False
35. 35.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
36. 36.🫧 Which of these is a base? (a) sugar water (b) orange juice (c) detergent water (d) lemon juice
37. 37.True or false: tamarind water is an acid. (a) False (b) True
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a magnet (c) an empty bottle (d) a tray for spills
39. 39.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) it glows in the dark (c) lots of fizzy bubbles (d) nothing at all
40. 40.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) a base (c) an acid

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