Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 134 · 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.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they react (c) they become magnets (d) they freeze
2. 2.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) carbon dioxide (c) oxygen (d) helium
3. 3.🔍 Which is the odd one out? (a) sugar water (b) detergent water (c) baking soda water (d) soap solution
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
5. 5.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
6. 6.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) seal it in a glass jar (d) shake it near your face
7. 7.🔍 Which is the odd one out? (a) sugar water (b) baking soda water (c) salt water (d) plain water
8. 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we keep it the same (c) we measure it
9. 9.🔍 Which is the odd one out? (a) detergent water (b) tamarind water (c) vinegar (d) lemon juice
10. 10.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) add baking soda (d) rinse with clean water
11. 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) a tray for spills (c) a funnel or spoon (d) an empty bottle
12. 12.🫧 Which of these is neutral? (a) orange juice (b) detergent water (c) salt water (d) soap solution
13. 13.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
14. 14.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
15. 15.🔮 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
16. 16.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a magnet (c) a balloon (d) a funnel or spoon
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a balloon (c) a funnel or spoon (d) a comb
18. 18.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the gas froze (c) an ingredient ran out (d) the bottle got tired
19. 19.⚖️ 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) the same bottle (c) the amount of vinegar (d) size of the balloon
20. 20.🫧 Which of these is an acid? (a) baking soda water (b) vinegar (c) soap solution (d) detergent water
21. 21.🫧 Which of these is neutral? (a) orange juice (b) curd (c) tamarind water (d) plain water
22. 22.🫧 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
23. 23.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
24. 24.True or false: vinegar is not needed for the fizzy balloon. (a) True (b) False
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) sugar (c) baking soda (d) an empty bottle
27. 27.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) yes, a new gas forms (c) no, nothing changes (d) it is only dissolving
28. 28.True or false: tamarind water is a base. (a) True (b) False
29. 29.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
30. 30.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a tray for spills (c) a comb (d) a balloon
31. 31.⚖️ 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 kind of balloon (c) spoons of baking soda (d) the same bottle
32. 32.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) baking soda (c) a seed (d) a magnet
33. 33.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) baking soda (c) a magnet (d) a balloon
34. 34.⚖️ 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
35. 35.⚖️ 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
36. 36.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
37. 37.⚖️ 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
38. 38.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a battery cell (c) an empty bottle (d) a balloon
39. 39.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
40. 40.True or false: vinegar is a base. (a) True (b) False

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