Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 973 · 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) it turns to honey (b) the balloon bursts (c) very little fizzing (d) a huge eruption
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the amount of vinegar (b) the same bottle (c) spoons of baking soda (d) size of the balloon
3. 3.🫧 Which of these is a base? (a) detergent water (b) orange juice (c) plain water (d) tamarind water
4. 4.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) a base (c) neutral
5. 5.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
6. 6.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it turns blue (c) there is no change (d) it grows bigger
7. 7.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a balloon (c) vinegar (d) a mirror
8. 8.True or false: vinegar is a base. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) salt water (d) soap solution
10. 10.🫧 Which of these is an acid? (a) baking soda water (b) soap solution (c) tamarind water (d) plain water
11. 11.🔍 Which is the odd one out? (a) plain water (b) orange juice (c) lemon juice (d) curd
12. 12.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) no, nothing changes (c) it is only dissolving (d) yes, a new gas forms
13. 13.🔍 Which is the odd one out? (a) salt water (b) vinegar (c) curd (d) lemon juice
14. 14.True or false: tamarind water is neutral. (a) False (b) True
15. 15.⚖️ 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 amount of vinegar
16. 16.True or false: soap solution is an acid. (a) True (b) False
17. 17.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rinse with clean water (c) rub it hard (d) ignore it
18. 18.⚖️ 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
19. 19.🫧 Which of these is neutral? (a) curd (b) orange juice (c) vinegar (d) salt water
20. 20.True or false: vinegar is an acid. (a) False (b) True
21. 21.🫧 Which of these is a base? (a) sugar water (b) baking soda water (c) plain water (d) vinegar
22. 22.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) seal it in a glass jar (d) shake it near your face
23. 23.True or false: a tray for spills is needed for the fizzy balloon. (a) True (b) False
24. 24.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they become magnets (c) they float apart (d) they freeze
25. 25.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) vinegar (c) a balloon (d) a battery cell
26. 26.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a seed (c) a balloon (d) a magnet
27. 27.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
28. 28.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) baking soda (c) a comb (d) vinegar
29. 29.True or false: sugar water is an acid. (a) True (b) False
30. 30.True or false: soap solution is neutral. (a) False (b) True
31. 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) a balloon (c) vinegar (d) an empty bottle
32. 32.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
33. 33.True or false: lemon juice is neutral. (a) False (b) True
34. 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a funnel or spoon (c) vinegar (d) a comb
35. 35.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
36. 36.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) it glows in the dark (c) it turns to ice (d) nothing at all
37. 37.🫧 Which of these is an acid? (a) baking soda water (b) sugar water (c) plain water (d) curd
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we keep it the same (c) we change it
39. 39.🎈 Why does the balloon blow up? (a) outside air gets in (b) the bottle shrinks (c) vinegar is hot (d) gas is made inside
40. 40.True or false: sugar is needed for the fizzy balloon. (a) True (b) False

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