Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 977 · 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.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) nothing at all (c) it turns to ice (d) lots of fizzy bubbles
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) the kind of balloon (c) spoons of baking soda (d) the amount of vinegar
3. 3.⚖️ 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
4. 4.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) baking soda water (b) vinegar (c) orange juice (d) lemon juice
6. 6.⚖️ 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
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) a tray for spills (d) sugar
8. 8.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) an acid (c) neutral
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
11. 11.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it shrinks (c) it turns blue (d) there is no change
12. 12.⚖️ 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 change it (c) we keep it the same
13. 13.🫧 Which of these is neutral? (a) sugar water (b) orange juice (c) curd (d) lemon juice
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) the kind of balloon (c) spoons of baking soda
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) the kind of balloon (c) the same bottle (d) size of the balloon
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) True (b) False
17. 17.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) outside air gets in (d) the bottle shrinks
18. 18.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) tamarind water
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) baking soda (c) a balloon (d) an empty bottle
20. 20.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) a mirror (c) a battery cell (d) sugar
21. 21.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a magnet (c) vinegar (d) a tray for spills
23. 23.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) orange juice (d) plain water
24. 24.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
25. 25.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the amount of vinegar (c) size of the balloon
27. 27.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
28. 28.🧺 Which of these is needed for the fizzy balloon? (a) a balloon (b) a magnet (c) a comb (d) a battery cell
29. 29.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
30. 30.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the gas froze (c) the balloon got cold (d) an ingredient ran out
31. 31.🔍 Which is the odd one out? (a) sugar water (b) tamarind water (c) lemon juice (d) vinegar
32. 32.True or false: curd is a base. (a) True (b) False
33. 33.🫧 Which of these is an acid? (a) detergent water (b) baking soda water (c) soap solution (d) lemon juice
34. 34.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
35. 35.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they float apart (d) they react
36. 36.True or false: vinegar is not needed for the fizzy balloon. (a) True (b) False
37. 37.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) add baking soda (c) rub it hard (d) rinse with clean water
38. 38.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
39. 39.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a battery cell (c) a magnet (d) a funnel or spoon
40. 40.True or false: a battery cell is not needed for the fizzy balloon. (a) True (b) False

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