Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 315 · 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 an acid? (a) plain water (b) soap solution (c) curd (d) salt water
2. 2.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) seal it in a glass jar (d) keep it away from eyes
3. 3.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) a tray for spills (c) vinegar (d) a funnel or spoon
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) spoons of baking soda (c) the amount of vinegar (d) size of the balloon
6. 6.True or false: salt water is neutral. (a) False (b) True
7. 7.⚖️ 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 kind of balloon
8. 8.True or false: baking soda water is a base. (a) False (b) True
9. 9.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) helium (c) carbon dioxide (d) oxygen
10. 10.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) very little fizzing (c) the balloon bursts (d) a huge eruption
11. 11.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
13. 13.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it grows bigger (c) it shrinks (d) it turns blue
14. 14.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) the bottle shrinks (d) gas is made inside
15. 15.🔍 Which is the odd one out? (a) vinegar (b) curd (c) lemon juice (d) soap solution
16. 16.⚖️ 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
17. 17.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) plain water (d) detergent water
18. 18.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) add baking soda (c) rub it hard (d) rinse with clean water
19. 19.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
20. 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) a funnel or spoon (d) a mirror
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) True (b) False
22. 22.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
23. 23.True or false: sugar water is neutral. (a) True (b) False
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 change it (c) we keep it the same
25. 25.🫧 Which of these is neutral? (a) vinegar (b) orange juice (c) baking soda water (d) salt water
26. 26.True or false: tamarind water is an acid. (a) False (b) True
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) False (b) True
28. 28.⚖️ 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 amount of vinegar (d) the kind of balloon
29. 29.True or false: tamarind water is a base. (a) False (b) True
30. 30.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
31. 31.⚖️ 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
32. 32.🔍 Which is the odd one out? (a) salt water (b) curd (c) sugar water (d) plain water
33. 33.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a balloon (c) a battery cell (d) a funnel or spoon
34. 34.📘 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
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) True (b) False
36. 36.True or false: detergent water is an acid. (a) True (b) False
37. 37.True or false: a magnet is needed for the fizzy balloon. (a) False (b) True
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) baking soda (c) an empty bottle (d) a tray for spills
39. 39.True or false: soap solution is a base. (a) False (b) True
40. 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a battery cell (c) vinegar (d) baking soda

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