Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 99 · 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.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
2. 2.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) rinse with clean water (c) ignore it (d) add baking soda
3. 3.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the amount of vinegar
5. 5.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) an ingredient ran out (c) the bottle got tired (d) the balloon got cold
6. 6.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a funnel or spoon (c) an empty bottle (d) a mirror
7. 7.⚖️ 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
8. 8.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
9. 9.🫧 Which of these is an acid? (a) sugar water (b) detergent water (c) baking soda water (d) curd
10. 10.🫧 Which of these is an acid? (a) lemon juice (b) salt water (c) sugar water (d) soap solution
11. 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) the balloon bursts (c) a huge eruption (d) very little fizzing
13. 13.🔍 Which is the odd one out? (a) detergent water (b) lemon juice (c) baking soda water (d) soap solution
14. 14.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
15. 15.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) an acid (c) neutral
16. 16.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
17. 17.⚖️ 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
18. 18.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it grows bigger (c) it turns blue (d) it shrinks
19. 19.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a magnet (c) an empty bottle (d) a mirror
20. 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a balloon (c) a tray for spills (d) sugar
21. 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a seed (c) a tray for spills (d) a funnel or spoon
22. 22.True or false: an empty bottle is needed for the fizzy balloon. (a) True (b) False
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the kind of balloon (c) the same bottle (d) size of the balloon
24. 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) vinegar (c) a battery cell (d) a funnel or spoon
25. 25.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) yes, a new gas forms (c) no, nothing changes (d) it is only melting
26. 26.🔍 Which is the odd one out? (a) lemon juice (b) vinegar (c) tamarind water (d) sugar water
27. 27.⚖️ 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
28. 28.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) oxygen (c) carbon dioxide (d) helium
29. 29.⚖️ 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
30. 30.True or false: salt water is an acid. (a) False (b) True
31. 31.🫧 Which of these is a base? (a) curd (b) lemon juice (c) tamarind water (d) detergent water
32. 32.🫧 Which of these is neutral? (a) salt water (b) detergent water (c) tamarind water (d) orange juice
33. 33.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
34. 34.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
35. 35.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) vinegar (c) an empty bottle (d) a magnet
36. 36.🔍 Which is the odd one out? (a) plain water (b) curd (c) vinegar (d) lemon juice
37. 37.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a battery cell (c) a mirror (d) vinegar
38. 38.🎈 Why does the balloon blow up? (a) gas is made inside (b) the bottle shrinks (c) outside air gets in (d) vinegar is hot
39. 39.True or false: curd is neutral. (a) False (b) True
40. 40.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True

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