Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 280 · 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 same bottle (b) size of the balloon (c) spoons of baking soda
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
3. 3.⚖️ 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) spoons of baking soda (d) the kind of balloon
4. 4.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
5. 5.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it shrinks (c) there is no change (d) it grows bigger
6. 6.🫧 Which of these is a base? (a) vinegar (b) detergent water (c) plain water (d) lemon juice
7. 7.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) seal it in a glass jar (c) put it in your mouth (d) shake it near your face
8. 8.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
10. 10.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) very little fizzing (c) a huge eruption (d) the balloon bursts
11. 11.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
12. 12.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) outside air gets in (c) gas is made inside (d) vinegar is hot
13. 13.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda (d) the kind of balloon
15. 15.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
16. 16.⚖️ 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
17. 17.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
18. 18.True or false: vinegar is neutral. (a) False (b) True
19. 19.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
20. 20.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) an empty bottle (c) vinegar (d) a comb
21. 21.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
22. 22.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
23. 23.⚖️ 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 keep it the same (c) we measure it
24. 24.🫧 Which of these is a base? (a) orange juice (b) curd (c) soap solution (d) lemon juice
25. 25.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a magnet (c) a mirror (d) an empty bottle
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon
27. 27.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a balloon (c) a mirror (d) sugar
28. 28.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
29. 29.True or false: plain water is an acid. (a) True (b) False
30. 30.⚖️ 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
31. 31.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
32. 32.True or false: vinegar is an acid. (a) True (b) False
33. 33.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it glows in the dark (c) it turns to ice (d) lots of fizzy bubbles
34. 34.True or false: curd is a base. (a) True (b) False
35. 35.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the balloon got cold (c) the gas froze (d) an ingredient ran out
36. 36.🫧 Which of these is an acid? (a) baking soda water (b) plain water (c) soap solution (d) lemon juice
37. 37.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) an empty bottle (c) a seed (d) baking soda
38. 38.True or false: sugar water is neutral. (a) True (b) False
39. 39.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) a balloon (c) baking soda (d) vinegar
40. 40.⚖️ 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) False (b) True

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