Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 776 · 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 not needed for the fizzy balloon? (a) an empty bottle (b) a magnet (c) a tray for spills (d) a balloon
2. 2.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) keep it away from eyes (d) seal it in a glass jar
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) detergent water (b) salt water (c) soap solution (d) baking soda water
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) the amount of vinegar (c) size of the balloon (d) spoons of baking soda
6. 6.🔍 Which is the odd one out? (a) curd (b) vinegar (c) orange juice (d) soap solution
7. 7.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) an ingredient ran out (c) the balloon got cold (d) the gas froze
8. 8.True or false: sugar is needed for the fizzy balloon. (a) False (b) True
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) a balloon (c) baking soda (d) a tray for spills
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a comb (c) baking soda (d) vinegar
11. 11.⚖️ 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 measure it (c) we keep it the same
12. 12.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it shrinks (c) there is no change (d) it grows bigger
13. 13.True or false: baking soda water is an acid. (a) False (b) True
14. 14.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a comb (c) a tray for spills (d) vinegar
15. 15.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
16. 16.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
17. 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) True (b) False
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) sugar (c) a tray for spills (d) an empty bottle
19. 19.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) outside air gets in (d) the bottle shrinks
20. 20.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) vinegar (c) sugar (d) a mirror
21. 21.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) carbon dioxide (c) helium (d) oxygen
22. 22.⚖️ 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 change it (c) we measure it
23. 23.True or false: detergent water is an acid. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) tamarind water (b) baking soda water (c) curd (d) lemon juice
25. 25.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
26. 26.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) it is only dissolving (c) it is only melting (d) no, nothing changes
27. 27.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
28. 28.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a funnel or spoon (c) a balloon (d) a battery cell
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the kind of balloon (b) spoons of baking soda (c) size of the balloon
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) baking soda (d) a seed
31. 31.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
32. 32.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) it turns to honey (c) a huge eruption (d) the balloon bursts
33. 33.🫧 Which of these is a base? (a) plain water (b) baking soda water (c) orange juice (d) salt water
34. 34.🫧 Which of these is an acid? (a) plain water (b) vinegar (c) soap solution (d) detergent water
35. 35.True or false: orange juice is a base. (a) False (b) True
36. 36.⚖️ 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
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) True (b) False
38. 38.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
39. 39.⚖️ 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
40. 40.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False

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