Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 299 · 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.🫧 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
2. 2.🔍 Which is the odd one out? (a) orange juice (b) salt water (c) curd (d) vinegar
3. 3.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they float apart (c) they become magnets (d) they freeze
4. 4.⚖️ 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 measure it (c) we keep it the same
5. 5.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
6. 6.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) put it in your mouth (c) keep it away from eyes (d) shake it near your face
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
8. 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a mirror (c) an empty bottle (d) baking soda
9. 9.True or false: soap solution is neutral. (a) True (b) False
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the amount of vinegar (b) the kind of balloon (c) size of the balloon (d) spoons of baking soda
11. 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) baking soda (c) a funnel or spoon (d) a seed
12. 12.🛟 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
13. 13.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
14. 14.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the gas froze (c) the balloon got cold (d) an ingredient ran out
15. 15.🔍 Which is the odd one out? (a) lemon juice (b) orange juice (c) curd (d) baking soda water
16. 16.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
17. 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) False (b) True
18. 18.🫧 Which of these is a base? (a) orange juice (b) tamarind water (c) detergent water (d) vinegar
19. 19.True or false: curd is an acid. (a) True (b) False
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
21. 21.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
22. 22.🫧 Which of these is a base? (a) baking soda water (b) curd (c) vinegar (d) salt water
23. 23.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
24. 24.🫧 Which of these is an acid? (a) baking soda water (b) tamarind water (c) soap solution (d) salt water
25. 25.True or false: a balloon is needed for the fizzy balloon. (a) False (b) True
26. 26.⚖️ 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
27. 27.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) helium (c) oxygen (d) carbon dioxide
28. 28.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) the balloon bursts (d) very little fizzing
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the kind of balloon (c) the same bottle (d) size of the balloon
30. 30.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a comb (c) a balloon (d) baking soda
31. 31.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
32. 32.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a battery cell (c) a magnet (d) an empty bottle
33. 33.🫧 Which of these is an acid? (a) baking soda water (b) detergent water (c) soap solution (d) lemon juice
34. 34.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it grows bigger (c) it turns blue (d) it shrinks
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the amount of vinegar
36. 36.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) lemon juice
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) True (b) False
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) baking soda (c) an empty bottle (d) vinegar
39. 39.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
40. 40.🫧 Which of these is neutral? (a) baking soda water (b) orange juice (c) curd (d) plain water

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