Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 856 · 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.🫧 Which of these is a base? (a) baking soda water (b) lemon juice (c) salt water (d) curd
2. 2.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
3. 3.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) the balloon bursts (c) it turns to honey (d) a huge eruption
4. 4.True or false: baking soda water is an acid. (a) False (b) True
5. 5.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the bottle got tired (c) an ingredient ran out (d) the balloon got cold
6. 6.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
7. 7.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) carbon dioxide (c) oxygen (d) helium
8. 8.⚖️ 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 same bottle (d) the kind of balloon
9. 9.🫧 Is curd an acid, a base or neutral? (a) an acid (b) neutral (c) a base
10. 10.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it grows bigger (c) there is no change (d) it turns blue
11. 11.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) sugar (c) a funnel or spoon (d) a battery cell
12. 12.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) sugar (c) a tray for spills (d) a funnel or spoon
13. 13.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) keep it away from eyes (d) shake it near your face
14. 14.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
15. 15.True or false: a magnet is not needed for the fizzy balloon. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) detergent water (b) curd (c) baking soda water (d) soap solution
17. 17.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
18. 18.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
19. 19.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) False (b) True
21. 21.⚖️ 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 measure it (c) we keep it the same
22. 22.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) add baking soda (c) ignore it (d) rub it hard
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) vinegar (c) a tray for spills (d) baking soda
24. 24.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a balloon (c) vinegar (d) a magnet
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) an empty bottle (c) sugar (d) a balloon
26. 26.📘 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
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the kind of balloon (b) the same bottle (c) spoons of baking soda (d) the amount of vinegar
28. 28.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) the same bottle (c) spoons of baking soda
30. 30.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) gas is made inside (d) the bottle shrinks
31. 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a battery cell (c) baking soda (d) a funnel or spoon
32. 32.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) a base (c) an acid
33. 33.⚖️ 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) True (b) False
34. 34.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
35. 35.True or false: lemon juice is a base. (a) True (b) False
36. 36.True or false: a mirror is not needed for the fizzy balloon. (a) True (b) False
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon
39. 39.🔍 Which is the odd one out? (a) soap solution (b) lemon juice (c) tamarind water (d) orange juice
40. 40.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) nothing at all (c) lots of fizzy bubbles (d) it turns to ice

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