Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 899 · 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? True or false: the amount of vinegar is what we measure. (a) False (b) True
2. 2.🎈 Why does the balloon blow up? (a) outside air gets in (b) the bottle shrinks (c) gas is made inside (d) vinegar is hot
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) True (b) False
4. 4.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) rinse with clean water (d) add baking soda
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a funnel or spoon (c) baking soda (d) a seed
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
7. 7.🔮 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
8. 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) neutral (c) a base
10. 10.⚖️ 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 measure it (c) we keep it the same
11. 11.True or false: an empty bottle is needed for the fizzy balloon. (a) True (b) False
12. 12.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
13. 13.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) a comb (c) a magnet (d) a seed
14. 14.🫧 Which of these is neutral? (a) salt water (b) baking soda water (c) detergent water (d) lemon juice
15. 15.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
16. 16.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) no, nothing changes (c) yes, a new gas forms (d) it is only dissolving
17. 17.⚖️ 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) spoons of baking soda (c) the amount of vinegar (d) the kind of balloon
18. 18.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a balloon (c) a magnet (d) a funnel or spoon
19. 19.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they float apart (c) they become magnets (d) they react
20. 20.⚖️ 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 amount of vinegar (c) the same bottle (d) spoons of baking soda
21. 21.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) it shrinks (d) there is no change
22. 22.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a mirror (c) a balloon (d) a funnel or spoon
23. 23.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
24. 24.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
25. 25.True or false: lemon juice is neutral. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) tamarind water (b) vinegar (c) orange juice (d) baking soda water
27. 27.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
28. 28.True or false: a battery cell is needed for the fizzy balloon. (a) True (b) False
29. 29.True or false: a magnet is needed for the fizzy balloon. (a) False (b) True
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda
31. 31.🛟 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
32. 32.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a mirror (c) vinegar (d) sugar
33. 33.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
34. 34.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) it turns to honey (c) a huge eruption (d) very little fizzing
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) True (b) False
36. 36.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
37. 37.True or false: tamarind water is an acid. (a) False (b) True
38. 38.🫧 Which of these is a base? (a) vinegar (b) plain water (c) baking soda water (d) curd
39. 39.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False
40. 40.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid

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