Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 879 · 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.True or false: tamarind water is an acid. (a) True (b) False
2. 2.⚖️ 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 keep it the same (c) we measure it
3. 3.🫧 Which of these is an acid? (a) baking soda water (b) salt water (c) lemon juice (d) soap solution
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) size of the balloon (c) the same bottle (d) the amount of vinegar
5. 5.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) an ingredient ran out (d) the bottle got tired
6. 6.🔍 Which is the odd one out? (a) plain water (b) salt water (c) tamarind water (d) sugar water
7. 7.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) it is only dissolving (c) no, nothing changes (d) yes, a new gas forms
8. 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a funnel or spoon (c) baking soda (d) a comb
9. 9.⚖️ 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 keep it the same (c) we measure it
10. 10.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False
11. 11.⚖️ 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 kind of balloon (c) spoons of baking soda
12. 12.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
13. 13.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) there is no change (c) it grows bigger (d) it shrinks
14. 14.🫧 Which of these is a base? (a) soap solution (b) sugar water (c) plain water (d) orange juice
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) it turns to honey (c) the balloon bursts (d) a huge eruption
17. 17.🫧 Which of these is an acid? (a) orange juice (b) baking soda water (c) soap solution (d) detergent water
18. 18.⚖️ 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) the amount of vinegar (c) spoons of baking soda (d) the kind of balloon
19. 19.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
20. 20.True or false: a magnet is not needed for the fizzy balloon. (a) True (b) False
21. 21.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they become magnets (c) they float apart (d) they freeze
22. 22.True or false: soap solution is an acid. (a) False (b) True
23. 23.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a comb (c) sugar (d) vinegar
24. 24.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
25. 25.🫧 Which of these is a base? (a) lemon juice (b) tamarind water (c) sugar water (d) baking soda water
26. 26.⚖️ 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
27. 27.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
28. 28.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
29. 29.🔍 Which is the odd one out? (a) salt water (b) plain water (c) sugar water (d) curd
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) baking soda (c) an empty bottle (d) a funnel or spoon
31. 31.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a battery cell (c) a funnel or spoon (d) baking soda
32. 32.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
33. 33.🧺 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 battery cell
34. 34.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
35. 35.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a seed (c) a tray for spills (d) a balloon
36. 36.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) shake it near your face (d) put it in your mouth
37. 37.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
38. 38.True or false: curd is neutral. (a) True (b) False
39. 39.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) it glows in the dark (c) nothing at all (d) lots of fizzy bubbles
40. 40.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) orange juice

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