Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 764 · 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: lemon juice is neutral. (a) False (b) True
2. 2.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) an empty bottle (c) a funnel or spoon (d) a magnet
3. 3.🎈 Why does the balloon blow up? (a) gas is made inside (b) the bottle shrinks (c) outside air gets in (d) vinegar is hot
4. 4.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
5. 5.True or false: soap solution is a base. (a) True (b) False
6. 6.🔮 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
7. 7.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) nothing at all (c) lots of fizzy bubbles (d) it turns to ice
8. 8.🔍 Which is the odd one out? (a) curd (b) lemon juice (c) salt water (d) vinegar
9. 9.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) an empty bottle (c) sugar (d) a battery cell
10. 10.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a comb (c) a seed (d) a battery cell
11. 11.🔍 Which is the odd one out? (a) lemon juice (b) soap solution (c) tamarind water (d) vinegar
12. 12.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
13. 13.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) keep it away from eyes (c) seal it in a glass jar (d) put it in your mouth
14. 14.True or false: plain water is a base. (a) False (b) True
15. 15.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) a huge eruption (d) it turns to honey
16. 16.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) plain water (b) salt water (c) sugar water (d) baking soda water
18. 18.⚖️ 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) spoons of baking soda (c) the amount of vinegar (d) the same bottle
19. 19.True or false: sugar water is neutral. (a) False (b) True
20. 20.True or false: sugar is not needed for the fizzy balloon. (a) True (b) False
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.🫧 Which of these is a base? (a) salt water (b) baking soda water (c) vinegar (d) sugar water
23. 23.True or false: a mirror is needed for the fizzy balloon. (a) False (b) True
24. 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) an empty bottle (c) sugar (d) baking soda
25. 25.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) soap solution (d) lemon juice
26. 26.📘 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 melting (d) it is only dissolving
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) an empty bottle (c) vinegar (d) a comb
28. 28.🫧 Which of these is an acid? (a) curd (b) baking soda water (c) salt water (d) sugar water
29. 29.🔍 Which is the odd one out? (a) vinegar (b) orange juice (c) curd (d) plain water
30. 30.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
31. 31.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) hydrogen (c) helium (d) carbon dioxide
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we measure it (c) we change it
33. 33.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) sugar (c) a magnet (d) baking soda
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we change it (c) we measure it
35. 35.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) an acid (c) a base
36. 36.True or false: baking soda water is an acid. (a) False (b) True
37. 37.True or false: tamarind water is an acid. (a) True (b) False
38. 38.🫧 Which of these is an acid? (a) detergent water (b) baking soda water (c) lemon juice (d) plain water
39. 39.🫧 Is curd an acid, a base or neutral? (a) neutral (b) an acid (c) a base
40. 40.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) ignore it (d) rinse with clean water

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