Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 623 · 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.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) a battery cell (c) a magnet (d) a mirror
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the same bottle (b) size of the balloon (c) spoons of baking soda (d) the kind of balloon
3. 3.🫧 Which of these is an acid? (a) detergent water (b) lemon juice (c) baking soda water (d) sugar water
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a seed (c) a balloon (d) baking soda
5. 5.⚖️ 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
6. 6.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
7. 7.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) there is no change (d) it shrinks
8. 8.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
9. 9.🔍 Which is the odd one out? (a) plain water (b) curd (c) vinegar (d) tamarind water
10. 10.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
11. 11.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) it turns to honey (c) very little fizzing (d) a huge eruption
12. 12.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) it turns to ice (c) nothing at all (d) lots of fizzy bubbles
13. 13.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we change it (b) we measure it (c) we keep it the same
15. 15.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) sugar water (d) soap solution
16. 16.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the gas froze (c) the balloon got cold (d) the bottle got tired
17. 17.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
18. 18.🔍 Which is the odd one out? (a) vinegar (b) lemon juice (c) detergent water (d) curd
19. 19.🫧 Which of these is neutral? (a) lemon juice (b) vinegar (c) orange juice (d) plain water
20. 20.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
21. 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) baking soda (c) a balloon (d) an empty bottle
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) baking soda (c) an empty bottle (d) a magnet
23. 23.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
24. 24.🛟 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
25. 25.🫧 Which of these is an acid? (a) detergent water (b) plain water (c) vinegar (d) sugar water
26. 26.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
27. 27.True or false: detergent water is neutral. (a) True (b) False
28. 28.🎈 Why does the balloon blow up? (a) outside air gets in (b) the bottle shrinks (c) vinegar is hot (d) gas is made inside
29. 29.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) a tray for spills (c) a balloon (d) a funnel or spoon
30. 30.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
31. 31.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
32. 32.⚖️ 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 measure it (c) we change it
33. 33.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they react (d) they float apart
34. 34.⚖️ 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) the kind of balloon
35. 35.⚖️ 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
36. 36.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) no, nothing changes (c) it is only melting (d) it is only dissolving
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) True (b) False
38. 38.⚖️ 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 keep it the same (c) we change it
39. 39.True or false: a tray for spills is needed for the fizzy balloon. (a) True (b) False
40. 40.⚖️ 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 amount of vinegar

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