Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 699 · 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 neutral? (a) sugar water (b) curd (c) orange juice (d) detergent water
2. 2.🫧 Which of these is an acid? (a) baking soda water (b) sugar water (c) soap solution (d) tamarind water
3. 3.🫧 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
4. 4.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they become magnets (c) they react (d) they freeze
5. 5.True or false: soap solution is a base. (a) False (b) True
6. 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) a balloon (c) a funnel or spoon (d) baking soda
7. 7.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
8. 8.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a mirror (c) a balloon (d) a funnel or spoon
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 measure it (c) we keep it the same
11. 11.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it shrinks (c) it turns blue (d) there is no change
12. 12.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) baking soda (c) an empty bottle (d) a balloon
13. 13.🔮 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
14. 14.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) the balloon bursts (c) a huge eruption (d) it turns to honey
15. 15.🔍 Which is the odd one out? (a) tamarind water (b) plain water (c) curd (d) vinegar
16. 16.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
17. 17.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) gas is made inside (d) the bottle shrinks
18. 18.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
19. 19.True or false: detergent water is neutral. (a) False (b) True
20. 20.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) shake it near your face (d) seal it in a glass jar
21. 21.⚖️ 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
22. 22.⚖️ 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
23. 23.True or false: a battery cell is not needed for the fizzy balloon. (a) True (b) False
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we keep it the same (c) we measure it
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
26. 26.True or false: lemon juice is neutral. (a) True (b) False
27. 27.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a funnel or spoon (c) a battery cell (d) sugar
28. 28.⚖️ 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
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) plain water (b) curd (c) salt water (d) sugar water
32. 32.True or false: vinegar is not needed for the fizzy balloon. (a) True (b) False
33. 33.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) rinse with clean water (d) add baking soda
34. 34.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) curd (b) orange juice (c) soap solution (d) lemon juice
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we keep it the same (c) we change it
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we measure it (c) we keep it the same
38. 38.🫧 Which of these is a base? (a) tamarind water (b) salt water (c) baking soda water (d) vinegar
39. 39.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
40. 40.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed

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