Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 751 · 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? Which of these is kept the same? (a) size of the balloon (b) the kind of balloon (c) spoons of baking soda
2. 2.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
3. 3.True or false: a tray for spills is needed for the fizzy balloon. (a) True (b) False
4. 4.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) shake it near your face (c) keep it away from eyes (d) put it in your mouth
5. 5.🫧 Which of these is a base? (a) curd (b) baking soda water (c) tamarind water (d) plain water
6. 6.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we change it (c) we keep it the same
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.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) detergent water (d) curd
10. 10.🫧 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
11. 11.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
12. 12.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it turns blue (c) there is no change (d) it grows bigger
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a funnel or spoon (c) a comb (d) a 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 keep it the same (b) we change it (c) we measure it
15. 15.🔍 Which is the odd one out? (a) baking soda water (b) plain water (c) soap solution (d) detergent water
16. 16.⚖️ 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
17. 17.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) very little fizzing (c) it turns to honey (d) the balloon bursts
18. 18.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the gas froze (c) an ingredient ran out (d) the balloon got cold
19. 19.🫧 Which of these is neutral? (a) lemon juice (b) tamarind water (c) salt water (d) orange juice
20. 20.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
21. 21.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) hydrogen (c) carbon dioxide (d) helium
22. 22.True or false: a balloon is needed for the fizzy balloon. (a) False (b) True
23. 23.🫧 Which of these is an acid? (a) sugar water (b) vinegar (c) detergent water (d) salt water
24. 24.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a magnet (c) a mirror (d) baking soda
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a battery cell (c) vinegar (d) a balloon
26. 26.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) rinse with clean water (d) add baking soda
27. 27.⚖️ 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) the amount of vinegar (c) size of the balloon (d) spoons of baking soda
28. 28.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) vinegar (c) a battery cell (d) a mirror
29. 29.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a magnet (c) a funnel or spoon (d) vinegar
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) False (b) True
31. 31.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
32. 32.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) an empty bottle (c) baking soda (d) a balloon
33. 33.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we measure it (c) we keep it the same
35. 35.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
36. 36.🔍 Which is the odd one out? (a) sugar water (b) tamarind water (c) plain water (d) salt water
37. 37.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a seed (c) vinegar (d) baking soda
38. 38.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a seed (c) a balloon (d) a comb
39. 39.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
40. 40.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) it is only melting (c) no, nothing changes (d) yes, a new gas forms

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