Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 785 · 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.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it shrinks (c) there is no change (d) it turns blue
2. 2.🧺 Which of these is not needed for the fizzy balloon? (a) a magnet (b) baking soda (c) vinegar (d) an empty bottle
3. 3.🫧 Is curd an acid, a base or neutral? (a) an acid (b) neutral (c) a base
4. 4.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a mirror (c) a funnel or spoon (d) vinegar
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) True (b) False
6. 6.⚖️ 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 keep it the same (c) we measure it
7. 7.🔍 Which is the odd one out? (a) detergent water (b) orange juice (c) lemon juice (d) vinegar
8. 8.⚖️ 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) the same bottle (d) spoons of baking soda
9. 9.🫧 Which of these is a base? (a) baking soda water (b) plain water (c) curd (d) lemon juice
10. 10.🫧 Which of these is neutral? (a) vinegar (b) detergent water (c) plain water (d) lemon juice
11. 11.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) seal it in a glass jar (d) shake it near your face
12. 12.⚖️ 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 keep it the same (c) we measure it
13. 13.⚖️ 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) size of the balloon (d) the same bottle
14. 14.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) an empty bottle (c) baking soda (d) a balloon
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
17. 17.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) the bottle shrinks (d) outside air gets in
18. 18.⚖️ 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 kind of balloon (c) spoons of baking soda
19. 19.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
20. 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) vinegar (c) sugar (d) a funnel or spoon
21. 21.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) it turns to ice (c) lots of fizzy bubbles (d) nothing at all
22. 22.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the bottle got tired (c) the gas froze (d) the balloon got cold
23. 23.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
24. 24.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) sugar (c) a mirror (d) a funnel or spoon
25. 25.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) rinse with clean water (d) add baking soda
26. 26.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a tray for spills (c) a battery cell (d) a funnel or spoon
27. 27.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) plain water (d) soap solution
28. 28.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) a balloon (c) vinegar (d) baking soda
29. 29.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) hydrogen (c) oxygen (d) helium
30. 30.🔍 Which is the odd one out? (a) salt water (b) baking soda water (c) soap solution (d) detergent water
31. 31.🫧 Which of these is a base? (a) orange juice (b) lemon juice (c) vinegar (d) soap solution
32. 32.True or false: baking soda water is an acid. (a) True (b) False
33. 33.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we keep it the same (c) we change it
35. 35.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) sugar (c) a magnet (d) a balloon
36. 36.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) vinegar (d) soap solution
38. 38.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
39. 39.⚖️ 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
40. 40.⚖️ 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

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