Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 314 · 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 is the odd one out? (a) tamarind water (b) plain water (c) vinegar (d) orange juice
2. 2.🫧 Which of these is a base? (a) salt water (b) orange juice (c) tamarind water (d) detergent water
3. 3.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
4. 4.⚖️ 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 same bottle (c) spoons of baking soda (d) the kind of balloon
5. 5.🔮 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
6. 6.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
7. 7.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
8. 8.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) it shrinks (d) there is no change
9. 9.⚖️ 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 change it (c) we keep it the same
10. 10.🎈 Why does the balloon blow up? (a) outside air gets in (b) gas is made inside (c) the bottle shrinks (d) vinegar is hot
11. 11.True or false: sugar water is a base. (a) False (b) True
12. 12.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
13. 13.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) an empty bottle (c) a seed (d) sugar
14. 14.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
15. 15.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) keep it away from eyes (d) put it in your mouth
16. 16.⚖️ 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
17. 17.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
18. 18.True or false: tamarind water is an acid. (a) False (b) True
19. 19.True or false: tamarind water is a base. (a) False (b) True
20. 20.📘 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
21. 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) a balloon (c) baking soda (d) a funnel or spoon
22. 22.🫧 Which of these is an acid? (a) plain water (b) curd (c) salt water (d) baking soda water
23. 23.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) an empty bottle (c) a seed (d) a tray for spills
24. 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) sugar (c) vinegar (d) baking soda
25. 25.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
26. 26.🔍 Which is the odd one out? (a) salt water (b) baking soda water (c) sugar water (d) plain water
27. 27.🫧 Which of these is a base? (a) soap solution (b) plain water (c) sugar water (d) orange juice
28. 28.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False
29. 29.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
30. 30.⚖️ 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) spoons of baking soda (c) the kind of balloon (d) the amount of vinegar
31. 31.🔍 Which is the odd one out? (a) detergent water (b) plain water (c) sugar water (d) salt water
32. 32.⚖️ 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) False (b) True
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the kind of balloon (b) spoons of baking soda (c) size of the balloon
34. 34.🫧 Which of these is an acid? (a) vinegar (b) baking soda water (c) soap solution (d) plain water
35. 35.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
36. 36.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) add baking soda (c) ignore it (d) rub it hard
37. 37.⚖️ 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
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) an empty bottle (c) vinegar (d) a battery cell
39. 39.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) carbon dioxide (c) oxygen (d) helium
40. 40.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) sugar (c) baking soda (d) a balloon

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