Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 440 · 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 is the odd one out? (a) sugar water (b) plain water (c) curd (d) salt water
2. 2.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it shrinks (c) it grows bigger (d) there is no change
3. 3.⚖️ 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
4. 4.🔍 Which is the odd one out? (a) tamarind water (b) soap solution (c) lemon juice (d) curd
5. 5.⚖️ 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) the kind of balloon (c) size of the balloon (d) spoons of baking soda
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) spoons of baking soda (c) size of the balloon (d) the kind of balloon
7. 7.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) shake it near your face (c) seal it in a glass jar (d) keep it away from eyes
8. 8.🫧 Which of these is an acid? (a) tamarind water (b) detergent water (c) salt water (d) baking soda water
9. 9.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) add baking soda (d) rinse with clean water
10. 10.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) sugar (c) a balloon (d) a magnet
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) vinegar (c) a battery cell (d) a funnel or spoon
12. 12.⚖️ 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
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
14. 14.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a mirror (c) baking soda (d) vinegar
15. 15.⚖️ 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) False (b) True
16. 16.True or false: salt water is neutral. (a) False (b) True
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a mirror (c) a balloon (d) an empty bottle
18. 18.True or false: tamarind water is a base. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) salt water (b) plain water (c) detergent water (d) sugar water
20. 20.🫧 Which of these is neutral? (a) vinegar (b) tamarind water (c) soap solution (d) plain water
21. 21.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) carbon dioxide (c) oxygen (d) helium
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we change it (c) we keep it the same
23. 23.🔍 Which is the odd one out? (a) plain water (b) salt water (c) sugar water (d) baking soda water
24. 24.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
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) a funnel or spoon (d) an empty bottle
26. 26.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
27. 27.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
28. 28.🔍 Which is the odd one out? (a) plain water (b) lemon juice (c) sugar water (d) salt water
29. 29.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a tray for spills (c) a comb (d) baking soda
30. 30.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a mirror (c) a battery cell (d) a funnel or spoon
31. 31.True or false: detergent water is a base. (a) True (b) False
32. 32.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
33. 33.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) vinegar (c) a magnet (d) a balloon
34. 34.True or false: lemon juice is a base. (a) True (b) False
35. 35.⚖️ 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
36. 36.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
37. 37.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
40. 40.🔮 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

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