Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 927 · 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) orange juice (b) vinegar (c) curd (d) detergent water
2. 2.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
3. 3.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
4. 4.⚖️ 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
5. 5.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
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) spoons of baking soda (c) the same bottle
7. 7.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) keep it away from eyes (d) shake it near your face
8. 8.🔍 Which is the odd one out? (a) baking soda water (b) lemon juice (c) vinegar (d) curd
9. 9.🫧 Which of these is an acid? (a) soap solution (b) sugar water (c) salt water (d) tamarind water
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) baking soda (c) sugar (d) a tray for spills
11. 11.🧺 Which of these is needed for the fizzy balloon? (a) an empty bottle (b) a mirror (c) a battery cell (d) a comb
12. 12.🔮 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
13. 13.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) True (b) False
15. 15.🫧 Which of these is an acid? (a) baking soda water (b) salt water (c) soap solution (d) lemon juice
16. 16.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) add baking soda (d) rinse with clean water
17. 17.🔮 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
18. 18.True or false: soap solution is neutral. (a) True (b) False
19. 19.True or false: tamarind water is an acid. (a) False (b) True
20. 20.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a seed (c) a funnel or spoon (d) an empty bottle
21. 21.🫧 Which of these is an acid? (a) baking soda water (b) soap solution (c) vinegar (d) detergent water
22. 22.🫧 Which of these is a base? (a) sugar water (b) salt water (c) detergent water (d) curd
23. 23.🫧 Which of these is a base? (a) baking soda water (b) tamarind water (c) lemon juice (d) curd
24. 24.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) a seed (c) a mirror (d) sugar
25. 25.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) salt water (d) detergent water
26. 26.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) an empty bottle (c) baking soda (d) a magnet
28. 28.⚖️ 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
29. 29.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
30. 30.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they become magnets (c) they float apart (d) they freeze
31. 31.⚖️ 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
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
33. 33.True or false: lemon juice is a base. (a) True (b) False
34. 34.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) carbon dioxide (c) oxygen (d) hydrogen
35. 35.⚖️ 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
36. 36.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a balloon (c) a seed (d) baking soda
37. 37.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) it is only dissolving (c) yes, a new gas forms (d) no, nothing changes
38. 38.🔍 Which is the odd one out? (a) orange juice (b) sugar water (c) plain water (d) salt water
39. 39.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) plain water (d) baking soda water
40. 40.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the bottle got tired (c) the balloon got cold (d) an ingredient ran out

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