Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 129 · 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.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
2. 2.⚖️ 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 keep it the same (c) we measure it
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a battery cell (c) an empty bottle (d) baking soda
4. 4.True or false: a battery cell is needed for the fizzy balloon. (a) True (b) False
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we measure it (c) we change it
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) the amount of vinegar (c) spoons of baking soda
7. 7.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
8. 8.🫧 Which of these is a base? (a) orange juice (b) detergent water (c) lemon juice (d) sugar water
9. 9.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we change it (b) we measure it (c) we keep it the same
11. 11.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a magnet (c) a funnel or spoon (d) a mirror
12. 12.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
13. 13.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) it shrinks (d) there is no change
14. 14.⚖️ 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 measure it (c) we keep it the same
15. 15.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) hydrogen (c) oxygen (d) carbon dioxide
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) spoons of baking soda (c) the amount of vinegar (d) size of the balloon
17. 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) vinegar (b) tamarind water (c) curd (d) salt water
19. 19.⚖️ 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
20. 20.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the balloon got cold (c) the gas froze (d) an ingredient ran out
21. 21.🫧 Which of these is neutral? (a) detergent water (b) tamarind water (c) lemon juice (d) plain water
22. 22.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
23. 23.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
24. 24.🔍 Which is the odd one out? (a) soap solution (b) vinegar (c) detergent water (d) baking soda water
25. 25.🔍 Which is the odd one out? (a) plain water (b) tamarind water (c) vinegar (d) lemon juice
26. 26.🫧 Which of these is an acid? (a) plain water (b) baking soda water (c) sugar water (d) lemon juice
27. 27.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) sugar (c) a magnet (d) vinegar
28. 28.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) an empty bottle (c) a balloon (d) a seed
29. 29.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) a base (c) neutral
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a seed (c) a funnel or spoon (d) a tray for spills
31. 31.True or false: lemon juice is an acid. (a) True (b) False
32. 32.True or false: plain water is a base. (a) False (b) True
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
34. 34.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
35. 35.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rinse with clean water (c) rub it hard (d) ignore it
36. 36.🫧 Which of these is an acid? (a) curd (b) baking soda water (c) salt water (d) soap solution
37. 37.🔍 Which is the odd one out? (a) salt water (b) plain water (c) sugar water (d) baking soda water
38. 38.True or false: baking soda water is neutral. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) lemon juice (b) sugar water (c) salt water (d) plain water
40. 40.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) a huge eruption (d) it turns to honey

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