Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 445 · 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) a tray for spills (b) a magnet (c) vinegar (d) a funnel or spoon
2. 2.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) rinse with clean water (d) add baking soda
3. 3.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they float apart (c) they react (d) they become magnets
4. 4.🫧 Which of these is neutral? (a) tamarind water (b) detergent water (c) vinegar (d) salt water
5. 5.🔮 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
6. 6.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) the bottle shrinks (d) outside air gets in
7. 7.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
8. 8.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a funnel or spoon (c) sugar (d) a seed
9. 9.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
10. 10.True or false: curd is a base. (a) False (b) True
11. 11.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) keep it away from eyes (c) seal it in a glass jar (d) put it in your mouth
12. 12.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
13. 13.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
14. 14.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) carbon dioxide (c) oxygen (d) helium
15. 15.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
16. 16.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) plain water (d) vinegar
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a seed (c) baking soda (d) an empty bottle
18. 18.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) True (b) False
20. 20.🧺 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) a tray for spills
21. 21.⚖️ 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) the kind of balloon (c) spoons of baking soda (d) the amount of vinegar
22. 22.⚖️ 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
23. 23.True or false: sugar water is an acid. (a) False (b) True
24. 24.⚖️ 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 keep it the same (c) we change it
25. 25.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
26. 26.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a tray for spills (c) an empty bottle (d) sugar
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a tray for spills (c) a funnel or spoon (d) sugar
28. 28.🫧 Which of these is a base? (a) soap solution (b) plain water (c) tamarind water (d) lemon juice
29. 29.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
30. 30.⚖️ 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 change it (c) we keep it the same
31. 31.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
32. 32.🫧 Is curd an acid, a base or neutral? (a) a base (b) an acid (c) neutral
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) the same bottle (c) the kind of balloon (d) size of the balloon
34. 34.🔮 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
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
36. 36.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
37. 37.⚖️ 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
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.⚖️ 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
40. 40.⚖️ 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

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