Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 380 · 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.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
3. 3.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
4. 4.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) lots of fizzy bubbles (c) nothing at all (d) it glows in the dark
5. 5.🫧 Which of these is an acid? (a) detergent water (b) tamarind water (c) salt water (d) sugar water
6. 6.🔍 Which is the odd one out? (a) baking soda water (b) sugar water (c) detergent water (d) soap solution
7. 7.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
8. 8.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it grows bigger (c) there is no change (d) it turns blue
9. 9.⚖️ 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) size of the balloon (c) the kind of balloon (d) spoons of baking soda
10. 10.⚖️ 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
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a funnel or spoon (c) baking soda (d) a comb
12. 12.🧺 Which of these is needed for the fizzy balloon? (a) an empty bottle (b) a mirror (c) sugar (d) a seed
13. 13.⚖️ 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 amount of vinegar (c) spoons of baking soda
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) size of the balloon (c) the amount of vinegar (d) the kind of balloon
15. 15.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we measure it (c) we change it
17. 17.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) put it in your mouth (d) keep it away from eyes
18. 18.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the same bottle
20. 20.🫧 Which of these is neutral? (a) tamarind water (b) curd (c) vinegar (d) plain water
21. 21.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) rinse with clean water (d) add baking soda
22. 22.⚖️ 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
23. 23.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
24. 24.True or false: sugar water is neutral. (a) False (b) True
25. 25.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
26. 26.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a battery cell (c) a tray for spills (d) an empty bottle
27. 27.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
28. 28.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) False (b) True
29. 29.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
30. 30.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) an ingredient ran out (c) the balloon got cold (d) the gas froze
31. 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a comb (c) baking soda (d) a balloon
32. 32.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
33. 33.🧺 Which of these is needed for the fizzy balloon? (a) a funnel or spoon (b) a comb (c) a magnet (d) sugar
34. 34.⚖️ 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
35. 35.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a mirror (c) a tray for spills (d) a balloon
36. 36.True or false: lemon juice is a base. (a) False (b) True
37. 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) vinegar (c) a tray for spills (d) a magnet
38. 38.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
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.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they react (c) they become magnets (d) they freeze

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