Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 632 · 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: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
2. 2.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) it turns to honey (c) the balloon bursts (d) a huge eruption
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) False (b) True
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) a comb (d) an empty bottle
5. 5.True or false: a balloon is needed for the fizzy balloon. (a) False (b) True
6. 6.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the bottle got tired (c) an ingredient ran out (d) the gas froze
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) vinegar (d) a battery cell
10. 10.⚖️ 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 amount of vinegar (d) the kind of balloon
11. 11.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they react (c) they freeze (d) they become magnets
12. 12.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) keep it away from eyes (c) put it in your mouth (d) seal it in a glass jar
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we keep it the same (c) we measure it
14. 14.⚖️ 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 same bottle (c) spoons of baking soda (d) the kind of balloon
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
17. 17.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) the bottle shrinks (d) gas is made inside
18. 18.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
19. 19.True or false: a magnet is not needed for the fizzy balloon. (a) True (b) False
20. 20.True or false: a battery cell is not needed for the fizzy balloon. (a) True (b) False
21. 21.⚖️ 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) False (b) True
22. 22.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) salt water (b) baking soda water (c) soap solution (d) detergent water
24. 24.🫧 Which of these is neutral? (a) tamarind water (b) soap solution (c) salt water (d) curd
25. 25.🫧 Which of these is neutral? (a) lemon juice (b) detergent water (c) plain water (d) baking soda water
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we measure it (c) we change it
27. 27.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
28. 28.🫧 Which of these is an acid? (a) soap solution (b) baking soda water (c) curd (d) plain water
29. 29.⚖️ 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) False (b) True
30. 30.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a battery cell (c) a tray for spills (d) sugar
31. 31.True or false: sugar water is an acid. (a) False (b) True
32. 32.🧺 Which of these is not needed for the fizzy balloon? (a) a mirror (b) a tray for spills (c) an empty bottle (d) vinegar
33. 33.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) sugar (c) an empty bottle (d) a tray for spills
34. 34.🫧 Which of these is an acid? (a) plain water (b) detergent water (c) sugar water (d) lemon juice
35. 35.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a mirror (c) vinegar (d) baking soda
36. 36.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) baking soda (c) a tray for spills (d) a magnet
37. 37.True or false: salt water is neutral. (a) False (b) True
38. 38.🛟 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
39. 39.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
40. 40.🔍 Which is the odd one out? (a) sugar water (b) detergent water (c) soap solution (d) baking soda water

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