Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 219 · 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 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
2. 2.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) lemon juice (d) soap solution
3. 3.⚖️ 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
4. 4.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the balloon got cold (c) the gas froze (d) an ingredient ran out
5. 5.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
6. 6.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) there is no change (d) it shrinks
7. 7.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
8. 8.⚖️ 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
9. 9.⚖️ 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) the amount of vinegar (d) spoons of baking soda
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the same bottle (c) size of the balloon (d) the kind of balloon
11. 11.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) plain water (d) baking soda water
12. 12.🔍 Which is the odd one out? (a) lemon juice (b) soap solution (c) vinegar (d) tamarind water
13. 13.🫧 Which of these is a base? (a) salt water (b) vinegar (c) soap solution (d) curd
14. 14.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a balloon (c) a magnet (d) a seed
15. 15.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
16. 16.True or false: lemon juice is an acid. (a) True (b) False
17. 17.🫧 Which of these is neutral? (a) detergent water (b) salt water (c) lemon juice (d) curd
18. 18.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
19. 19.True or false: curd is neutral. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) plain water (b) detergent water (c) salt water (d) sugar water
21. 21.🫧 Which of these is neutral? (a) detergent water (b) plain water (c) vinegar (d) baking soda water
22. 22.🔍 Which is the odd one out? (a) vinegar (b) orange juice (c) curd (d) salt water
23. 23.🔍 Which is the odd one out? (a) tamarind water (b) vinegar (c) plain water (d) lemon juice
24. 24.🔍 Which is the odd one out? (a) baking soda water (b) tamarind water (c) detergent water (d) soap solution
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.⚖️ 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
27. 27.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) outside air gets in (d) the bottle shrinks
28. 28.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
29. 29.🧺 Do we need a funnel or spoon 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 funnel or spoon (b) a comb (c) a balloon (d) baking soda
31. 31.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they float apart (c) they react (d) they freeze
32. 32.🫧 Which of these is an acid? (a) sugar water (b) lemon juice (c) detergent water (d) soap solution
33. 33.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
34. 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) vinegar (c) sugar (d) baking soda
35. 35.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) baking soda (c) a magnet (d) a tray for spills
36. 36.⚖️ 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
37. 37.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) add baking soda (c) rinse with clean water (d) ignore it
38. 38.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
39. 39.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
40. 40.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) vinegar (c) a funnel or spoon (d) a tray for spills

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