Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 389 · 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: a funnel or spoon is needed for the fizzy balloon. (a) True (b) False
2. 2.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) the kind of balloon (c) the same bottle (d) spoons of baking soda
4. 4.⚖️ 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) the amount of vinegar (d) size of the balloon
5. 5.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) it shrinks (d) there is no change
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the same bottle (b) spoons of baking soda (c) size of the balloon
7. 7.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) lemon juice (b) salt water (c) vinegar (d) tamarind water
9. 9.⚖️ 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
10. 10.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) ignore it (c) rub it hard (d) add baking soda
11. 11.🫧 Which of these is neutral? (a) vinegar (b) lemon juice (c) salt water (d) orange juice
12. 12.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
13. 13.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) shake it near your face (d) put it in your mouth
14. 14.⚖️ 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 measure it (c) we change it
15. 15.🫧 Is salt water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
16. 16.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) a balloon (d) a comb
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a magnet (c) a tray for spills (d) vinegar
19. 19.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) the balloon bursts (c) a huge eruption (d) it turns to honey
20. 20.⚖️ 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 measure it (c) we change it
21. 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a funnel or spoon (c) a balloon (d) baking soda
22. 22.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) sugar (c) vinegar (d) a magnet
23. 23.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
24. 24.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) an empty bottle (c) a funnel or spoon (d) a tray for spills
25. 25.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
26. 26.🫧 Which of these is an acid? (a) vinegar (b) sugar water (c) plain water (d) baking soda water
27. 27.🔮 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
28. 28.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) oxygen (c) carbon dioxide (d) hydrogen
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.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) True (b) False
31. 31.True or false: tamarind water is an acid. (a) True (b) False
32. 32.⚖️ 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) True (b) False
33. 33.True or false: curd is neutral. (a) True (b) False
34. 34.⚖️ 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
35. 35.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) baking soda (c) a mirror (d) a tray for spills
36. 36.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a battery cell (c) an empty bottle (d) a balloon
37. 37.🫧 Which of these is neutral? (a) lemon juice (b) tamarind water (c) sugar water (d) curd
38. 38.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) baking soda water (d) salt water
40. 40.⚖️ 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 change it (c) we measure it

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