Baking Soda and Vinegar Experiment Worksheet

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

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