Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 615 · 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 is the odd one out? (a) soap solution (b) baking soda water (c) detergent water (d) plain water
2. 2.⚖️ 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
3. 3.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True
4. 4.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) keep it away from eyes (d) seal it in a glass jar
5. 5.🫧 Which of these is an acid? (a) vinegar (b) detergent water (c) soap solution (d) baking soda water
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
7. 7.⚖️ 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) False (b) True
8. 8.🫧 Which of these is a base? (a) lemon juice (b) baking soda water (c) tamarind water (d) orange juice
9. 9.🔍 Which is the odd one out? (a) plain water (b) salt water (c) sugar water (d) soap solution
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the kind of balloon (b) spoons of baking soda (c) size of the balloon
11. 11.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
12. 12.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
13. 13.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a tray for spills (c) a comb (d) sugar
14. 14.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) it is only melting (c) yes, a new gas forms (d) no, nothing changes
15. 15.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
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.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) sugar (c) a comb (d) a mirror
18. 18.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a funnel or spoon (c) an empty bottle (d) a magnet
19. 19.⚖️ 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
20. 20.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) very little fizzing (d) it turns to honey
21. 21.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) rinse with clean water (d) add baking soda
22. 22.True or false: curd is an acid. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) orange juice (b) curd (c) detergent water (d) lemon juice
24. 24.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) the bottle shrinks (d) gas is made inside
25. 25.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
26. 26.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
27. 27.🫧 Is curd an acid, a base or neutral? (a) neutral (b) an acid (c) a base
28. 28.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
29. 29.⚖️ 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 change it (c) we measure it
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a tray for spills (c) a funnel or spoon (d) a comb
31. 31.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) baking soda (c) a battery cell (d) a mirror
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) the kind of balloon (c) spoons of baking soda (d) the amount of vinegar
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
34. 34.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) an ingredient ran out (d) the bottle got tired
35. 35.⚖️ 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 measure it (c) we keep it the same
36. 36.True or false: a magnet is not needed for the fizzy balloon. (a) True (b) False
37. 37.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it glows in the dark (c) lots of fizzy bubbles (d) it turns to ice
38. 38.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) False (b) True
40. 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a mirror (c) a funnel or spoon (d) an empty bottle

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