Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 119 · 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 a base? (a) salt water (b) plain water (c) lemon juice (d) detergent water
2. 2.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a seed (c) vinegar (d) an empty bottle
3. 3.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) it turns to honey (d) a huge eruption
4. 4.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) shake it near your face (c) put it in your mouth (d) keep it away from eyes
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
6. 6.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
7. 7.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the balloon got cold (c) an ingredient ran out (d) the gas froze
8. 8.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only melting (c) it is only dissolving (d) yes, a new gas forms
9. 9.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
10. 10.🔍 Which is the odd one out? (a) salt water (b) plain water (c) sugar water (d) baking soda water
11. 11.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) tamarind water
12. 12.True or false: a mirror is needed for the fizzy balloon. (a) False (b) True
13. 13.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a battery cell (c) a comb (d) vinegar
14. 14.True or false: detergent water is an acid. (a) True (b) False
15. 15.True or false: curd is a base. (a) False (b) True
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.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) False (b) True
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a mirror (c) an empty bottle (d) a balloon
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a comb (c) baking soda (d) vinegar
20. 20.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
21. 21.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) rub it hard (c) add baking soda (d) ignore it
22. 22.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) oxygen (c) helium (d) hydrogen
23. 23.True or false: a battery cell is not needed for the fizzy balloon. (a) True (b) False
24. 24.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a balloon (c) a magnet (d) vinegar
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) vinegar (c) baking soda (d) a funnel or spoon
27. 27.🫧 Which of these is an acid? (a) curd (b) baking soda water (c) sugar water (d) plain water
28. 28.🔍 Which is the odd one out? (a) curd (b) orange juice (c) soap solution (d) tamarind water
29. 29.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a balloon (c) a funnel or spoon (d) sugar
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) a balloon (c) vinegar (d) baking soda
31. 31.⚖️ 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
32. 32.True or false: soap solution is a base. (a) True (b) False
33. 33.True or false: vinegar is neutral. (a) True (b) False
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) size of the balloon (c) the kind of balloon (d) spoons of baking soda
35. 35.⚖️ 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) size of the balloon (c) the amount of vinegar (d) spoons of baking soda
36. 36.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
37. 37.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
38. 38.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
40. 40.True or false: an empty bottle is needed for the fizzy balloon. (a) True (b) False

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