Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 230 · 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.⚖️ 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 same bottle (c) spoons of baking soda
2. 2.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a balloon (c) a battery cell (d) vinegar
4. 4.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
5. 5.⚖️ 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 kind of balloon (c) spoons of baking soda (d) the amount of vinegar
6. 6.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
7. 7.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a funnel or spoon (c) sugar (d) a battery cell
8. 8.True or false: vinegar is a base. (a) False (b) True
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
10. 10.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it shrinks (c) it grows bigger (d) there is no change
11. 11.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) a huge eruption (c) very little fizzing (d) it turns to honey
12. 12.🫧 Which of these is an acid? (a) soap solution (b) plain water (c) baking soda water (d) tamarind water
13. 13.⚖️ 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 measure it (c) we keep it the same
14. 14.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a seed (c) a tray for spills (d) vinegar
15. 15.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) True (b) False
17. 17.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) True (b) False
19. 19.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) shake it near your face (c) keep it away from eyes (d) seal it in a glass jar
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) spoons of baking soda (c) the kind of balloon (d) the same bottle
21. 21.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
22. 22.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) no, nothing changes (c) it is only dissolving (d) it is only melting
23. 23.🫧 Which of these is an acid? (a) soap solution (b) salt water (c) plain water (d) lemon juice
24. 24.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a funnel or spoon (c) a mirror (d) an empty bottle
25. 25.True or false: detergent water is neutral. (a) True (b) False
26. 26.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a battery cell (c) baking soda (d) a mirror
27. 27.⚖️ 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 amount of vinegar (c) spoons of baking soda
28. 28.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
29. 29.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) sugar (c) baking soda (d) a balloon
31. 31.🔍 Which is the odd one out? (a) curd (b) detergent water (c) tamarind water (d) lemon juice
32. 32.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) add baking soda (c) rub it hard (d) ignore it
33. 33.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) oxygen (c) hydrogen (d) helium
34. 34.True or false: soap solution is a base. (a) False (b) True
35. 35.True or false: tamarind water is an acid. (a) False (b) True
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) True (b) False
37. 37.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
38. 38.🔍 Which is the odd one out? (a) plain water (b) salt water (c) sugar water (d) vinegar
39. 39.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) the bottle shrinks (d) gas is made inside
40. 40.🔍 Which is the odd one out? (a) curd (b) vinegar (c) orange juice (d) plain water

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