Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 179 · 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.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a balloon (c) an empty bottle (d) a mirror
2. 2.🔍 Which is the odd one out? (a) lemon juice (b) soap solution (c) baking soda water (d) detergent water
3. 3.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
5. 5.True or false: vinegar is neutral. (a) False (b) True
6. 6.⚖️ 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
7. 7.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) lots of fizzy bubbles (c) it glows in the dark (d) it turns to ice
8. 8.🛟 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
9. 9.🫧 Which of these is neutral? (a) lemon juice (b) soap solution (c) vinegar (d) plain water
10. 10.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
11. 11.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
12. 12.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
13. 13.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) it shrinks (d) there is no change
14. 14.🫧 Which of these is neutral? (a) sugar water (b) vinegar (c) curd (d) detergent water
15. 15.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the bottle got tired (d) the gas froze
16. 16.True or false: sugar water is neutral. (a) False (b) True
17. 17.⚖️ 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 amount of vinegar
18. 18.🔍 Which is the odd one out? (a) baking soda water (b) orange juice (c) detergent water (d) soap solution
19. 19.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
20. 20.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
21. 21.🧺 Which of these is needed for the fizzy balloon? (a) a tray for spills (b) a magnet (c) a seed (d) a comb
22. 22.🫧 Which of these is a base? (a) sugar water (b) plain water (c) salt water (d) detergent water
23. 23.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) keep it away from eyes (d) put it in your mouth
24. 24.🔍 Which is the odd one out? (a) sugar water (b) baking soda water (c) plain water (d) salt water
25. 25.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
26. 26.⚖️ 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
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a magnet (c) an empty bottle (d) baking soda
28. 28.🔍 Which is the odd one out? (a) curd (b) sugar water (c) salt water (d) plain water
29. 29.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they float apart (c) they become magnets (d) they react
30. 30.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) salt water (d) vinegar
31. 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) an empty bottle (c) vinegar (d) a funnel or spoon
32. 32.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
33. 33.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
34. 34.True or false: soap solution is neutral. (a) False (b) True
35. 35.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) carbon dioxide (c) oxygen (d) hydrogen
36. 36.🔍 Which is the odd one out? (a) curd (b) lemon juice (c) vinegar (d) plain water
37. 37.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) outside air gets in (d) the bottle shrinks
38. 38.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
39. 39.⚖️ 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
40. 40.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) very little fizzing (d) the balloon bursts

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