Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 618 · 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 of these is needed for the fizzy balloon? (a) a comb (b) a battery cell (c) a balloon (d) a seed
2. 2.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) it is only dissolving (c) yes, a new gas forms (d) no, nothing changes
3. 3.🫧 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
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the same bottle (b) spoons of baking soda (c) size of the balloon
5. 5.🫧 Which of these is neutral? (a) baking soda water (b) tamarind water (c) plain water (d) curd
6. 6.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a comb (c) a mirror (d) a funnel or spoon
7. 7.⚖️ 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
8. 8.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) sugar (c) a battery cell (d) vinegar
9. 9.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) soap solution (d) vinegar
10. 10.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) ignore it (c) rinse with clean water (d) rub it hard
11. 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a balloon (c) a seed (d) a funnel or spoon
12. 12.True or false: salt water is an acid. (a) True (b) False
13. 13.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
14. 14.🫧 Which of these is a base? (a) soap solution (b) sugar water (c) lemon juice (d) tamarind water
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) an empty bottle (c) vinegar (d) baking soda
16. 16.⚖️ 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
17. 17.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) an ingredient ran out (c) the bottle got tired (d) the balloon got cold
18. 18.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
20. 20.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
21. 21.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) oxygen (c) hydrogen (d) helium
22. 22.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) soap solution (d) plain water
23. 23.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a mirror (c) an empty bottle (d) a magnet
24. 24.🔍 Which is the odd one out? (a) plain water (b) baking soda water (c) salt water (d) sugar water
25. 25.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) keep it away from eyes (d) shake it near your face
26. 26.🔮 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
27. 27.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
28. 28.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) outside air gets in (c) gas is made inside (d) vinegar is hot
29. 29.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) a base (c) neutral
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a funnel or spoon (c) baking soda (d) a battery cell
31. 31.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
32. 32.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
33. 33.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
34. 34.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) a huge eruption (c) very little fizzing (d) the balloon bursts
35. 35.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a balloon (c) baking soda (d) a magnet
36. 36.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) curd (d) soap solution
37. 37.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
38. 38.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
39. 39.🫧 Which of these is an acid? (a) salt water (b) baking soda water (c) vinegar (d) sugar water
40. 40.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base

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