Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 502 · 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.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
2. 2.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) shake it near your face (d) seal it in a glass jar
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) size of the balloon (c) the same bottle (d) the amount of vinegar
4. 4.⚖️ 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 change it (c) we measure it
5. 5.🫧 Which of these is a base? (a) lemon juice (b) baking soda water (c) curd (d) plain water
6. 6.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a funnel or spoon (c) a balloon (d) a magnet
7. 7.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
8. 8.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
9. 9.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) there is no change (c) it shrinks (d) it grows bigger
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 not needed for the fizzy balloon? (a) a funnel or spoon (b) a comb (c) baking soda (d) an empty bottle
12. 12.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
13. 13.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
14. 14.🔍 Which is the odd one out? (a) vinegar (b) curd (c) tamarind water (d) soap solution
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the same bottle (b) the amount of vinegar (c) size of the balloon (d) spoons of baking soda
16. 16.🔍 Which is the odd one out? (a) lemon juice (b) tamarind water (c) plain water (d) vinegar
17. 17.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
18. 18.⚖️ 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 measure it (c) we keep it the same
19. 19.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
20. 20.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
21. 21.🔍 Which is the odd one out? (a) orange juice (b) baking soda water (c) detergent water (d) soap solution
22. 22.⚖️ 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
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we keep it the same (b) we measure it (c) we change it
24. 24.True or false: vinegar is a base. (a) True (b) False
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) an empty bottle (c) a seed (d) a tray for spills
26. 26.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) helium (c) carbon dioxide (d) hydrogen
27. 27.🧺 Which of these is not needed for the fizzy balloon? (a) sugar (b) a funnel or spoon (c) an empty bottle (d) vinegar
28. 28.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) an ingredient ran out (c) the balloon got cold (d) the bottle got tired
29. 29.⚖️ 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
30. 30.🎈 Why does the balloon blow up? (a) outside air gets in (b) the bottle shrinks (c) vinegar is hot (d) gas is made inside
31. 31.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
32. 32.🫧 Which of these is an acid? (a) baking soda water (b) curd (c) detergent water (d) sugar water
33. 33.True or false: vinegar is neutral. (a) False (b) True
34. 34.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
35. 35.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
36. 36.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) detergent water (d) salt water
37. 37.⚖️ 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) True (b) False
38. 38.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) add baking soda (c) rinse with clean water (d) rub it hard
39. 39.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
40. 40.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) vinegar (c) baking soda (d) a mirror

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