Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 540 · 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.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) baking soda (c) a tray for spills (d) a seed
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) size of the balloon (d) spoons of baking soda
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a balloon (c) a magnet (d) an empty bottle
4. 4.🫧 Is curd an acid, a base or neutral? (a) neutral (b) an acid (c) a base
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) vinegar (c) baking soda (d) a battery cell
6. 6.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) shake it near your face (c) keep it away from eyes (d) put it in your mouth
7. 7.🔍 Which is the odd one out? (a) lemon juice (b) salt water (c) plain water (d) sugar water
8. 8.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) baking soda (c) a funnel or spoon (d) a comb
10. 10.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) vinegar (b) baking soda water (c) soap solution (d) detergent water
12. 12.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it grows bigger (c) it turns blue (d) there is no change
13. 13.🫧 Which of these is a base? (a) tamarind water (b) baking soda water (c) curd (d) orange juice
14. 14.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) it turns to ice (c) lots of fizzy bubbles (d) nothing at all
15. 15.🫧 Which of these is a base? (a) plain water (b) vinegar (c) soap solution (d) sugar water
16. 16.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
17. 17.True or false: orange juice is an acid. (a) False (b) True
18. 18.True or false: curd is a base. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) tamarind water (b) plain water (c) curd (d) vinegar
20. 20.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
21. 21.⚖️ 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 kind of balloon (d) the amount of vinegar
22. 22.🔍 Which is the odd one out? (a) sugar water (b) orange juice (c) plain water (d) salt water
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
24. 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a funnel or spoon (c) an empty bottle (d) a mirror
25. 25.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a mirror (c) a seed (d) vinegar
26. 26.⚖️ 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
27. 27.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) tamarind water (b) sugar water (c) salt water (d) plain water
29. 29.🔍 Which is the odd one out? (a) orange juice (b) salt water (c) vinegar (d) lemon juice
30. 30.True or false: salt water is neutral. (a) True (b) False
31. 31.🫧 Which of these is an acid? (a) soap solution (b) sugar water (c) detergent water (d) tamarind water
32. 32.🫧 Which of these is neutral? (a) lemon juice (b) detergent water (c) tamarind water (d) salt water
33. 33.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) gas is made inside (d) the bottle shrinks
34. 34.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they freeze (c) they float apart (d) they react
35. 35.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the amount of vinegar
37. 37.True or false: curd is an acid. (a) False (b) True
38. 38.True or false: vinegar is an acid. (a) True (b) False
39. 39.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) it turns to honey (c) a huge eruption (d) the balloon bursts
40. 40.True or false: curd is neutral. (a) True (b) False

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