Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 411 · 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.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.True or false: an empty bottle is needed for the fizzy balloon. (a) True (b) False
3. 3.🫧 Which of these is an acid? (a) baking soda water (b) plain water (c) sugar water (d) orange juice
4. 4.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
5. 5.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we keep it the same (c) we change it
7. 7.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they react (d) they float apart
8. 8.⚖️ 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
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the kind of balloon (b) size of the balloon (c) spoons of baking soda
10. 10.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) it turns to honey (d) a huge eruption
11. 11.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) hydrogen (c) carbon dioxide (d) oxygen
12. 12.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
13. 13.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) add baking soda (d) rinse with clean water
14. 14.🔮 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
15. 15.True or false: sugar water is neutral. (a) False (b) True
16. 16.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
17. 17.True or false: lemon juice is an acid. (a) False (b) True
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the same bottle (c) size of the balloon
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) vinegar (c) an empty bottle (d) a balloon
20. 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) a mirror (d) baking soda
21. 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) a funnel or spoon (c) baking soda (d) a balloon
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) the amount of vinegar (c) spoons of baking soda (d) size of the balloon
23. 23.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
24. 24.⚖️ 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) size of the balloon
25. 25.⚖️ 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
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) True (b) False
27. 27.True or false: tamarind water is an acid. (a) True (b) False
28. 28.True or false: a battery cell is not needed for the fizzy balloon. (a) True (b) False
29. 29.⚖️ 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
30. 30.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) sugar (c) a magnet (d) a funnel or spoon
31. 31.True or false: a magnet is needed for the fizzy balloon. (a) False (b) True
32. 32.🫧 Which of these is neutral? (a) lemon juice (b) salt water (c) detergent water (d) vinegar
33. 33.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) a base (c) an acid
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) True (b) False
35. 35.🫧 Which of these is a base? (a) orange juice (b) baking soda water (c) sugar water (d) curd
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) False (b) True
37. 37.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
38. 38.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) the bottle shrinks (d) outside air gets in
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) an empty bottle (c) a balloon (d) vinegar

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