Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 91 · 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.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a comb (c) a tray for spills (d) baking soda
4. 4.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) sugar (c) a comb (d) a tray for spills
5. 5.🔍 Which is the odd one out? (a) baking soda water (b) orange juice (c) tamarind water (d) lemon juice
6. 6.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the gas froze (c) an ingredient ran out (d) the bottle got tired
7. 7.⚖️ 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
8. 8.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) lots of fizzy bubbles (c) it turns to ice (d) nothing at all
9. 9.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) shake it near your face (c) put it in your mouth (d) seal it in a glass jar
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we keep it the same (c) we measure it
11. 11.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
12. 12.🫧 Which of these is neutral? (a) soap solution (b) baking soda water (c) vinegar (d) plain water
13. 13.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) sugar (c) baking soda (d) a tray for spills
14. 14.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) the balloon bursts (d) very little fizzing
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
16. 16.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a tray for spills (c) a mirror (d) baking soda
17. 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the amount of vinegar
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a battery cell (c) a balloon (d) vinegar
20. 20.🔮 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
21. 21.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
22. 22.True or false: detergent water is a base. (a) False (b) True
23. 23.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) outside air gets in (c) gas is made inside (d) vinegar is hot
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only dissolving (c) it is only melting (d) yes, a new gas forms
26. 26.🫧 Which of these is a base? (a) lemon juice (b) vinegar (c) curd (d) soap solution
27. 27.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
28. 28.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
29. 29.🔍 Which is the odd one out? (a) baking soda water (b) tamarind water (c) detergent water (d) soap solution
30. 30.True or false: plain water is neutral. (a) False (b) True
31. 31.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
32. 32.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
33. 33.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
34. 34.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) rinse with clean water (c) ignore it (d) add baking soda
35. 35.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) vinegar (c) a magnet (d) sugar
36. 36.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a tray for spills (c) a seed (d) baking soda
37. 37.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) curd (b) vinegar (c) salt water (d) orange juice
40. 40.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) vinegar (c) an empty bottle (d) a balloon

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