Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 995 · 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 what we measure? (a) the kind of balloon (b) the same bottle (c) spoons of baking soda (d) size of the balloon
2. 2.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) there is no change (d) it shrinks
3. 3.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
4. 4.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
6. 6.True or false: vinegar is an acid. (a) False (b) True
7. 7.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
8. 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) the amount of vinegar (c) the same bottle (d) the kind of balloon
9. 9.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
10. 10.🫧 Which of these is a base? (a) baking soda water (b) tamarind water (c) vinegar (d) salt water
11. 11.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) rinse with clean water (c) add baking soda (d) ignore it
12. 12.🔍 Which is the odd one out? (a) tamarind water (b) salt water (c) curd (d) vinegar
13. 13.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) a tray for spills (c) a funnel or spoon (d) vinegar
14. 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) a battery cell (d) a tray for spills
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a funnel or spoon (c) baking soda (d) sugar
16. 16.True or false: baking soda water is a base. (a) True (b) False
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) a mirror (d) baking soda
18. 18.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a magnet (c) a balloon (d) sugar
19. 19.🫧 Which of these is a base? (a) lemon juice (b) curd (c) detergent water (d) sugar water
20. 20.True or false: a balloon 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 “the amount of vinegar”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
23. 23.⚖️ 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 measure it (c) we keep it the same
24. 24.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) plain water (d) soap solution
25. 25.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
26. 26.🛟 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
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda
28. 28.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the balloon got cold (c) the gas froze (d) the bottle got tired
29. 29.⚖️ 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
30. 30.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
31. 31.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a seed (c) a comb (d) baking soda
32. 32.🔍 Which is the odd one out? (a) baking soda water (b) plain water (c) sugar water (d) salt water
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) False (b) True
34. 34.🧺 Which of these is needed for the fizzy balloon? (a) an empty bottle (b) a seed (c) a battery cell (d) a mirror
35. 35.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) it turns to honey (d) a huge eruption
36. 36.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
37. 37.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a seed (c) baking soda (d) a tray for spills
39. 39.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
40. 40.🫧 Which of these is a base? (a) soap solution (b) lemon juice (c) tamarind water (d) vinegar

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