Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 644 · 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.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they float apart (c) they react (d) they freeze
2. 2.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) baking soda (c) vinegar (d) a tray for spills
3. 3.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a balloon (c) a mirror (d) vinegar
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) sugar (c) an empty bottle (d) baking soda
5. 5.⚖️ 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
6. 6.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a funnel or spoon (c) a tray for spills (d) a comb
8. 8.True or false: plain water is neutral. (a) False (b) True
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
10. 10.🔍 Which is the odd one out? (a) tamarind water (b) salt water (c) plain water (d) sugar water
11. 11.⚖️ 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 change it (c) we keep it the same
12. 12.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) a seed (d) a tray for spills
13. 13.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) baking soda (c) a funnel or spoon (d) a magnet
14. 14.True or false: orange juice is an acid. (a) True (b) False
15. 15.⚖️ 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) spoons of baking soda (d) the same bottle
16. 16.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
17. 17.🫧 Which of these is a base? (a) vinegar (b) tamarind water (c) detergent water (d) salt water
18. 18.True or false: curd is neutral. (a) True (b) False
19. 19.🫧 Which of these is neutral? (a) soap solution (b) sugar water (c) vinegar (d) lemon juice
20. 20.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) oxygen (c) helium (d) hydrogen
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) spoons of baking soda (c) the same bottle (d) the amount of vinegar
22. 22.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
23. 23.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
24. 24.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the gas froze (c) an ingredient ran out (d) the balloon got cold
25. 25.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it turns blue (c) there is no change (d) it grows bigger
26. 26.🔍 Which is the odd one out? (a) lemon juice (b) vinegar (c) curd (d) baking soda water
27. 27.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
28. 28.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) yes, a new gas forms (c) it is only dissolving (d) no, nothing changes
29. 29.True or false: lemon juice is an acid. (a) False (b) True
30. 30.🛟 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
31. 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a mirror (c) a funnel or spoon (d) a balloon
32. 32.🔍 Which is the odd one out? (a) plain water (b) salt water (c) sugar water (d) curd
33. 33.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) rinse with clean water (d) add baking soda
34. 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) baking soda (c) a tray for spills (d) a battery cell
35. 35.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
36. 36.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) plain water (b) salt water (c) soap solution (d) sugar water
38. 38.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
39. 39.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
40. 40.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a comb (c) a magnet (d) a tray for spills

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