Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 485 · 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 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
2. 2.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) sugar (c) a comb (d) vinegar
3. 3.True or false: orange juice is an acid. (a) True (b) False
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the kind of balloon (c) size of the balloon
5. 5.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) hydrogen (c) carbon dioxide (d) oxygen
6. 6.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the gas froze (d) the bottle got tired
7. 7.⚖️ 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
8. 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) False (b) True
9. 9.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) True (b) False
11. 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we change it (c) we measure it
12. 12.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
13. 13.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) a base (c) neutral
14. 14.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) a tray for spills (c) vinegar (d) baking soda
15. 15.⚖️ 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
16. 16.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) add baking soda (c) rub it hard (d) rinse with clean water
17. 17.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
18. 18.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
19. 19.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a battery cell (c) baking soda (d) sugar
20. 20.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) soap solution (d) lemon juice
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) vinegar (c) a seed (d) a funnel or spoon
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) True (b) False
25. 25.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a seed (c) sugar (d) a tray for spills
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.🫧 Which of these is a base? (a) lemon juice (b) baking soda water (c) tamarind water (d) sugar water
28. 28.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
29. 29.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) there is no change (c) it shrinks (d) it turns blue
30. 30.🫧 Which of these is an acid? (a) curd (b) detergent water (c) baking soda water (d) sugar water
31. 31.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) the bottle shrinks (d) outside air gets in
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) the kind of balloon (c) size of the balloon (d) the same bottle
33. 33.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
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) the kind of balloon (c) size of the balloon (d) the amount of vinegar
35. 35.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
36. 36.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
37. 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) an empty bottle (c) vinegar (d) a comb
38. 38.🫧 Which of these is neutral? (a) baking soda water (b) orange juice (c) curd (d) salt water
39. 39.🔍 Which is the odd one out? (a) plain water (b) lemon juice (c) orange juice (d) tamarind water
40. 40.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) sugar (c) baking soda (d) a balloon

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