Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 124 · 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.⚖️ 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) size of the balloon (c) the kind of balloon (d) the same bottle
2. 2.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a mirror (c) a tray for spills (d) vinegar
3. 3.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) rub it hard (c) ignore it (d) add baking soda
4. 4.🫧 Which of these is an acid? (a) plain water (b) detergent water (c) salt water (d) lemon juice
5. 5.⚖️ 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 same bottle (c) spoons of baking soda (d) the kind of balloon
6. 6.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) lemon juice (b) soap solution (c) curd (d) vinegar
8. 8.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) shake it near your face (d) seal it in a glass jar
9. 9.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
10. 10.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it turns to ice (c) lots of fizzy bubbles (d) it glows in the dark
11. 11.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
12. 12.🔍 Which is the odd one out? (a) baking soda water (b) lemon juice (c) detergent water (d) soap solution
13. 13.🫧 Which of these is neutral? (a) orange juice (b) lemon juice (c) sugar water (d) baking soda water
14. 14.True or false: tamarind water is an acid. (a) False (b) True
15. 15.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only dissolving (c) yes, a new gas forms (d) it is only melting
16. 16.True or false: curd is a base. (a) True (b) False
17. 17.True or false: vinegar is neutral. (a) True (b) False
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a mirror (c) a funnel or spoon (d) a tray for spills
19. 19.🔍 Which is the odd one out? (a) detergent water (b) orange juice (c) tamarind water (d) vinegar
20. 20.⚖️ 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) False (b) True
21. 21.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
22. 22.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) the bottle shrinks (d) outside air gets in
23. 23.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) plain water (b) vinegar (c) tamarind water (d) curd
26. 26.⚖️ 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
27. 27.🧺 Which of these is needed for the fizzy balloon? (a) a tray for spills (b) a seed (c) a comb (d) sugar
28. 28.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a balloon (c) vinegar (d) a magnet
29. 29.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) an empty bottle (c) a magnet (d) a balloon
30. 30.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
31. 31.True or false: lemon juice is neutral. (a) False (b) True
32. 32.True or false: soap solution is a base. (a) False (b) True
33. 33.⚖️ 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 measure it (c) we change it
34. 34.🔍 Which is the odd one out? (a) salt water (b) plain water (c) orange juice (d) sugar water
35. 35.⚖️ 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
36. 36.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the gas froze (c) the bottle got tired (d) an ingredient ran out
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.🫧 Which of these is an acid? (a) tamarind water (b) soap solution (c) salt water (d) plain water
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we measure it (c) we change it
40. 40.⚖️ 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 same bottle (c) size of the balloon

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