Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 328 · 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.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) it turns to honey (c) very little fizzing (d) a huge eruption
2. 2.🔍 Which is the odd one out? (a) vinegar (b) curd (c) tamarind water (d) salt water
3. 3.🔍 Which is the odd one out? (a) detergent water (b) plain water (c) baking soda water (d) soap solution
4. 4.🫧 Which of these is neutral? (a) baking soda water (b) salt water (c) lemon juice (d) curd
5. 5.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rinse with clean water (c) add baking soda (d) rub it hard
6. 6.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a funnel or spoon (c) an empty bottle (d) a magnet
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
8. 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) baking soda (c) a balloon (d) vinegar
9. 9.⚖️ 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
10. 10.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
11. 11.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
12. 12.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they float apart (d) they react
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) the kind of balloon (c) size of the balloon (d) spoons of baking soda
14. 14.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
15. 15.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
16. 16.🔍 Which is the odd one out? (a) baking soda water (b) lemon juice (c) curd (d) vinegar
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) vinegar (c) a mirror (d) a balloon
18. 18.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
19. 19.🔍 Which is the odd one out? (a) detergent water (b) salt water (c) plain water (d) sugar water
20. 20.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a comb (c) a balloon (d) a mirror
21. 21.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
22. 22.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) there is no change (c) it shrinks (d) it grows bigger
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a seed (c) an empty bottle (d) a tray for spills
24. 24.⚖️ 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
25. 25.🫧 Which of these is an acid? (a) plain water (b) salt water (c) sugar water (d) orange juice
26. 26.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) soap solution (d) orange juice
27. 27.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the bottle got tired (c) the gas froze (d) an ingredient ran out
28. 28.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) baking soda (c) a battery cell (d) a balloon
29. 29.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) an empty bottle (c) a tray for spills (d) baking soda
30. 30.⚖️ 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
31. 31.True or false: detergent water is a base. (a) True (b) False
32. 32.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
33. 33.⚖️ 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
34. 34.🫧 Which of these is neutral? (a) soap solution (b) orange juice (c) sugar water (d) detergent water
35. 35.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
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 change it (c) we keep it the same
37. 37.⚖️ 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
38. 38.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
39. 39.True or false: curd is an acid. (a) False (b) True
40. 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) a tray for spills (c) an empty bottle (d) vinegar

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