Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 822 · 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? Which of these is kept the same? (a) the kind of balloon (b) size of the balloon (c) spoons of baking soda
2. 2.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) outside air gets in (c) gas is made inside (d) vinegar is hot
3. 3.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the bottle got tired (c) the gas froze (d) the balloon got cold
4. 4.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) yes, a new gas forms (c) it is only dissolving (d) it is only melting
5. 5.⚖️ 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
6. 6.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) there is no change (c) it shrinks (d) it turns blue
7. 7.True or false: curd is an acid. (a) False (b) True
8. 8.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) a balloon (c) a tray for spills (d) an empty bottle
10. 10.⚖️ 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
11. 11.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) seal it in a glass jar (d) shake it near your face
12. 12.True or false: vinegar is neutral. (a) False (b) True
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.🫧 Which of these is a base? (a) orange juice (b) plain water (c) lemon juice (d) detergent water
15. 15.🫧 Which of these is a base? (a) tamarind water (b) soap solution (c) curd (d) salt water
16. 16.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) baking soda (c) a funnel or spoon (d) an empty bottle
17. 17.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a mirror (c) a seed (d) vinegar
18. 18.🫧 Which of these is an acid? (a) baking soda water (b) orange juice (c) detergent water (d) sugar water
19. 19.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a balloon (c) a mirror (d) a seed
20. 20.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) a base (c) neutral
21. 21.🔍 Which is the odd one out? (a) curd (b) tamarind water (c) vinegar (d) sugar water
22. 22.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
23. 23.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) a huge eruption (c) it turns to honey (d) the balloon bursts
24. 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) baking soda (c) a balloon (d) vinegar
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the kind of balloon (b) size of the balloon (c) the same bottle (d) spoons of baking soda
26. 26.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) baking soda (c) a battery cell (d) a seed
27. 27.True or false: soap solution is neutral. (a) True (b) False
28. 28.🫧 Is curd an acid, a base or neutral? (a) an acid (b) a base (c) neutral
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we change it (c) we keep it the same
30. 30.🫧 Which of these is a base? (a) plain water (b) orange juice (c) baking soda water (d) salt water
31. 31.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) rub it hard (c) ignore it (d) add baking soda
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) spoons of baking soda (c) the same bottle (d) size of the balloon
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) True (b) False
34. 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) baking soda (c) a tray for spills (d) a funnel or spoon
35. 35.True or false: detergent water is a base. (a) True (b) False
36. 36.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
37. 37.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
38. 38.True or false: baking soda water is neutral. (a) True (b) False
39. 39.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
40. 40.True or false: a balloon is needed for the fizzy balloon. (a) False (b) True

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