Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 551 · 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: curd is an acid. (a) False (b) True
2. 2.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) add baking soda (c) rub it hard (d) rinse with clean water
3. 3.🔍 Which is the odd one out? (a) baking soda water (b) curd (c) detergent water (d) soap solution
4. 4.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
5. 5.True or false: baking soda water is an acid. (a) True (b) False
6. 6.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
7. 7.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
8. 8.🫧 Which of these is neutral? (a) curd (b) orange juice (c) salt water (d) vinegar
9. 9.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
10. 10.⚖️ 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
11. 11.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) very little fizzing (c) a huge eruption (d) the balloon bursts
12. 12.⚖️ 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) size of the balloon (c) spoons of baking soda (d) the kind of balloon
13. 13.🔮 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
14. 14.🧺 Which of these is not needed for the fizzy balloon? (a) sugar (b) vinegar (c) an empty bottle (d) baking soda
15. 15.True or false: a battery cell is needed for the fizzy balloon. (a) True (b) False
16. 16.🫧 Which of these is an acid? (a) detergent water (b) tamarind water (c) soap solution (d) sugar water
17. 17.⚖️ 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
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) False (b) True
19. 19.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a tray for spills (c) a comb (d) vinegar
20. 20.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) hydrogen (c) oxygen (d) carbon dioxide
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
22. 22.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
23. 23.⚖️ 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 keep it the same (c) we change it
24. 24.⚖️ 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
25. 25.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
26. 26.True or false: curd is neutral. (a) False (b) True
27. 27.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) it is only melting (c) yes, a new gas forms (d) no, nothing changes
28. 28.True or false: salt water is an acid. (a) True (b) False
29. 29.⚖️ 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
30. 30.🔍 Which is the odd one out? (a) lemon juice (b) baking soda water (c) vinegar (d) tamarind water
31. 31.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
32. 32.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) shake it near your face (d) seal it in a glass jar
33. 33.🫧 Which of these is neutral? (a) baking soda water (b) lemon juice (c) sugar water (d) orange juice
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) True (b) False
35. 35.🧺 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 balloon (d) sugar
36. 36.🫧 Which of these is an acid? (a) soap solution (b) detergent water (c) lemon juice (d) plain water
37. 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) an empty bottle (d) a battery cell
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) False (b) True
39. 39.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it grows bigger (d) it turns blue
40. 40.🧺 Which of these is needed for the fizzy balloon? (a) a tray for spills (b) a magnet (c) a comb (d) sugar

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