Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 991 · 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.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) the balloon bursts (d) very little fizzing
2. 2.⚖️ 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
3. 3.🛟 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
4. 4.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) ignore it (d) rinse with clean water
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) vinegar (c) an empty bottle (d) baking soda
6. 6.True or false: curd is an acid. (a) True (b) False
7. 7.🫧 Which of these is a base? (a) detergent water (b) orange juice (c) plain water (d) vinegar
8. 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we keep it the same (b) we change it (c) we measure it
9. 9.⚖️ 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
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a tray for spills (c) baking soda (d) a mirror
11. 11.🔍 Which is the odd one out? (a) tamarind water (b) soap solution (c) detergent water (d) baking soda water
12. 12.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) the bottle got tired (d) an ingredient ran out
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) sugar (c) a tray for spills (d) an empty bottle
14. 14.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
15. 15.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a funnel or spoon (c) a seed (d) vinegar
16. 16.True or false: detergent water is a base. (a) False (b) True
17. 17.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) helium (c) carbon dioxide (d) oxygen
18. 18.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) False (b) True
19. 19.True or false: soap solution is a base. (a) False (b) True
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.🫧 Which of these is neutral? (a) vinegar (b) plain water (c) detergent water (d) curd
22. 22.🔮 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
23. 23.📘 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
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the same bottle (b) spoons of baking soda (c) the kind of balloon (d) the amount of vinegar
25. 25.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
26. 26.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a tray for spills (c) a comb (d) an empty bottle
27. 27.🔍 Which is the odd one out? (a) lemon juice (b) vinegar (c) baking soda water (d) tamarind water
28. 28.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a funnel or spoon (c) a mirror (d) sugar
29. 29.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) size of the balloon (c) the amount of vinegar (d) spoons of baking soda
31. 31.True or false: an empty bottle is needed for the fizzy balloon. (a) True (b) False
32. 32.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
34. 34.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) it turns to ice (c) nothing at all (d) lots of fizzy bubbles
35. 35.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a funnel or spoon (c) baking soda (d) a magnet
36. 36.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they float apart (c) they freeze (d) they react
37. 37.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
38. 38.🫧 Which of these is a base? (a) curd (b) vinegar (c) tamarind water (d) soap solution
39. 39.True or false: baking soda water is a base. (a) False (b) True
40. 40.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed

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