Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 110 · 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.True or false: sugar water is neutral. (a) True (b) False
2. 2.🫧 Is plain water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
3. 3.🔍 Which is the odd one out? (a) lemon juice (b) vinegar (c) curd (d) plain water
4. 4.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) keep it away from eyes (c) put it in your mouth (d) seal it in a glass jar
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we measure it (c) we change it
6. 6.🎈 Why does the balloon blow up? (a) outside air gets in (b) gas is made inside (c) vinegar is hot (d) the bottle shrinks
7. 7.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the bottle got tired (d) the gas froze
8. 8.⚖️ 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
9. 9.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) helium (c) oxygen (d) carbon dioxide
10. 10.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) salt water (d) curd
11. 11.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon (d) the same bottle
14. 14.🫧 Which of these is neutral? (a) vinegar (b) detergent water (c) tamarind water (d) sugar water
15. 15.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) a huge eruption (c) it turns to honey (d) the balloon bursts
16. 16.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) a tray for spills (c) vinegar (d) baking soda
18. 18.⚖️ 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 keep it the same (c) we measure it
19. 19.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) it is only melting (c) no, nothing changes (d) it is only dissolving
20. 20.True or false: detergent water is neutral. (a) False (b) True
21. 21.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
22. 22.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) False (b) True
23. 23.🫧 Which of these is an acid? (a) baking soda water (b) detergent water (c) curd (d) plain water
24. 24.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) lemon juice (d) salt water
25. 25.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) an empty bottle (c) a balloon (d) a seed
26. 26.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) baking soda (c) a mirror (d) a comb
27. 27.⚖️ 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
28. 28.🫧 Which of these is an acid? (a) salt water (b) lemon juice (c) soap solution (d) baking soda water
29. 29.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) there is no change (d) it shrinks
30. 30.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
31. 31.True or false: tamarind water is an acid. (a) True (b) False
32. 32.🫧 Is curd an acid, a base or neutral? (a) neutral (b) an acid (c) a base
33. 33.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
34. 34.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) it turns to ice (c) lots of fizzy bubbles (d) nothing at all
35. 35.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) a tray for spills (d) a battery cell
36. 36.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they react (c) they float apart (d) they become magnets
37. 37.🫧 Which of these is a base? (a) curd (b) tamarind water (c) plain water (d) soap solution
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) vinegar (c) sugar (d) a funnel or spoon
39. 39.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) detergent water (b) vinegar (c) lemon juice (d) curd

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