Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 112 · 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? What do we do with “size of the balloon”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🫧 Which of these is a base? (a) curd (b) baking soda water (c) lemon juice (d) salt water
3. 3.📘 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 freeze (d) they react
4. 4.🛟 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
5. 5.🫧 Which of these is a base? (a) detergent water (b) orange juice (c) salt water (d) plain water
6. 6.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) gas is made inside (c) vinegar is hot (d) outside air gets in
7. 7.🔍 Which is the odd one out? (a) vinegar (b) curd (c) sugar water (d) lemon juice
8. 8.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) neutral (c) a base
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) False (b) True
10. 10.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
11. 11.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
13. 13.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
14. 14.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) very little fizzing (d) it turns to honey
15. 15.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) oxygen (c) carbon dioxide (d) hydrogen
16. 16.⚖️ 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 kind of balloon (c) the same bottle (d) size of the balloon
17. 17.⚖️ 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
18. 18.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) tamarind water (d) plain water
19. 19.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
20. 20.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a seed (c) an empty bottle (d) a magnet
21. 21.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
22. 22.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) an empty bottle (c) a tray for spills (d) sugar
24. 24.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) an empty bottle (c) a battery cell (d) a funnel or spoon
26. 26.🫧 Which of these is neutral? (a) lemon juice (b) baking soda water (c) curd (d) plain water
27. 27.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) add baking soda (d) rinse with clean water
28. 28.True or false: tamarind water is an acid. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) curd (b) plain water (c) lemon juice (d) orange juice
30. 30.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
31. 31.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a magnet (c) baking soda (d) sugar
32. 32.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) vinegar
33. 33.⚖️ 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
34. 34.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) yes, a new gas forms (c) it is only dissolving (d) it is only melting
35. 35.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
36. 36.🫧 Which of these is a base? (a) vinegar (b) tamarind water (c) soap solution (d) lemon juice
37. 37.🔍 Which is the odd one out? (a) baking soda water (b) salt water (c) sugar water (d) plain water
38. 38.⚖️ 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) the amount of vinegar (d) size of the balloon
39. 39.🧺 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) a tray for spills
40. 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) True (b) False

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