Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 154 · 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.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a balloon (c) a funnel or spoon (d) an empty bottle
2. 2.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) shake it near your face (c) put it in your mouth (d) keep it away from eyes
3. 3.⚖️ 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
4. 4.True or false: a mirror is not needed for the fizzy balloon. (a) True (b) False
5. 5.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a funnel or spoon (c) baking soda (d) a magnet
6. 6.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
7. 7.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) rinse with clean water (c) ignore it (d) add baking soda
8. 8.📘 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
9. 9.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a magnet (c) sugar (d) vinegar
10. 10.True or false: soap solution is an acid. (a) True (b) False
11. 11.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) the bottle shrinks (d) outside air gets in
12. 12.⚖️ 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
13. 13.⚖️ 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
14. 14.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) the bottle got tired (d) an ingredient ran out
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.🔍 Which is the odd one out? (a) vinegar (b) curd (c) sugar water (d) lemon juice
17. 17.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a balloon (c) a seed (d) a comb
18. 18.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) it turns to ice (c) lots of fizzy bubbles (d) nothing at all
19. 19.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) helium (c) carbon dioxide (d) oxygen
20. 20.True or false: salt water is neutral. (a) False (b) True
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
23. 23.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) lemon juice (d) plain water
24. 24.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) baking soda (c) a seed (d) a magnet
25. 25.⚖️ 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
26. 26.True or false: a mirror is needed for the fizzy balloon. (a) False (b) True
27. 27.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a mirror (c) a tray for spills (d) sugar
28. 28.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
29. 29.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) True (b) False
31. 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) an empty bottle (c) a tray for spills (d) baking soda
32. 32.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
33. 33.🔍 Which is the odd one out? (a) tamarind water (b) sugar water (c) plain water (d) salt water
34. 34.True or false: a battery cell is not needed for the fizzy balloon. (a) True (b) False
35. 35.⚖️ 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
36. 36.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) tamarind water (b) curd (c) lemon juice (d) soap solution
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) spoons of baking soda (c) size of the balloon (d) the amount of vinegar
39. 39.🔍 Which is the odd one out? (a) curd (b) lemon juice (c) baking soda water (d) vinegar
40. 40.True or false: soap solution is a base. (a) True (b) False

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