Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 34 · 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 of these is needed for the fizzy balloon? (a) a mirror (b) vinegar (c) a magnet (d) a comb
2. 2.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) a balloon (c) a tray for spills (d) vinegar
4. 4.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) a funnel or spoon (c) a tray for spills (d) a balloon
5. 5.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) shake it near your face (d) put it in your mouth
6. 6.True or false: detergent water is neutral. (a) False (b) True
7. 7.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
8. 8.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) vinegar (c) an empty bottle (d) a balloon
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the same bottle (b) size of the balloon (c) spoons of baking soda
10. 10.🔍 Which is the odd one out? (a) soap solution (b) curd (c) tamarind water (d) vinegar
11. 11.⚖️ 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 keep it the same (c) we change it
12. 12.🔮 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
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) True (b) False
14. 14.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
15. 15.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) the balloon bursts (c) a huge eruption (d) very little fizzing
16. 16.🔮 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
17. 17.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) helium (c) oxygen (d) carbon dioxide
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a seed (c) baking soda (d) an empty bottle
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon
20. 20.🔍 Which is the odd one out? (a) curd (b) salt water (c) tamarind water (d) vinegar
21. 21.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
22. 22.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) rinse with clean water (c) add baking soda (d) ignore it
23. 23.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) it turns to ice (c) it glows in the dark (d) nothing at all
24. 24.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) sugar (c) a funnel or spoon (d) a balloon
26. 26.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) vinegar
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a tray for spills (c) an empty bottle (d) baking soda
28. 28.⚖️ 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) spoons of baking soda (c) the amount of vinegar (d) size of the balloon
29. 29.🔍 Which is the odd one out? (a) curd (b) sugar water (c) vinegar (d) tamarind water
30. 30.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
31. 31.⚖️ 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
32. 32.⚖️ 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
33. 33.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
34. 34.🫧 Which of these is an acid? (a) baking soda water (b) salt water (c) soap solution (d) vinegar
35. 35.True or false: sugar water is an acid. (a) False (b) True
36. 36.🫧 Which of these is a base? (a) plain water (b) soap solution (c) tamarind water (d) vinegar
37. 37.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
38. 38.🔍 Which is the odd one out? (a) plain water (b) detergent water (c) baking soda water (d) soap solution
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda (d) the same bottle
40. 40.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed

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