Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 378 · 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 gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) helium (c) carbon dioxide (d) hydrogen
2. 2.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the gas froze (c) the balloon got cold (d) an ingredient ran out
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) a funnel or spoon (d) sugar
4. 4.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it glows in the dark (c) lots of fizzy bubbles (d) it turns to ice
5. 5.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) it turns to honey (d) a huge eruption
6. 6.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) outside air gets in (c) gas is made inside (d) vinegar is hot
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a magnet (c) a funnel or spoon (d) a balloon
8. 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) baking soda (c) a tray for spills (d) a seed
9. 9.True or false: vinegar is an acid. (a) False (b) True
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 keep it the same (c) we measure it
11. 11.⚖️ 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
12. 12.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
13. 13.🫧 Which of these is a base? (a) detergent water (b) lemon juice (c) salt water (d) tamarind water
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the amount of vinegar (b) spoons of baking soda (c) the kind of balloon (d) size of the balloon
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 keep it the same (c) we change it
16. 16.⚖️ 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) False (b) True
17. 17.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
19. 19.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) ignore it (c) rub it hard (d) rinse with clean water
20. 20.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
21. 21.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) soap solution (d) plain water
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a funnel or spoon (c) a tray for spills (d) a comb
23. 23.True or false: sugar water is neutral. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) sugar water (d) detergent water
25. 25.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) yes, a new gas forms (c) no, nothing changes (d) it is only dissolving
26. 26.🔍 Which is the odd one out? (a) baking soda water (b) vinegar (c) detergent water (d) soap solution
27. 27.🫧 Which of these is an acid? (a) salt water (b) soap solution (c) sugar water (d) curd
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.True or false: tamarind water is neutral. (a) True (b) False
30. 30.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
31. 31.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) neutral (c) a base
32. 32.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
33. 33.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
34. 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) an empty bottle (c) a tray for spills (d) a battery cell
35. 35.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) it shrinks (d) there is no change
36. 36.🧺 Which of these is not needed for the fizzy balloon? (a) a mirror (b) baking soda (c) an empty bottle (d) a tray for spills
37. 37.🫧 Which of these is an acid? (a) plain water (b) tamarind water (c) detergent water (d) salt water
38. 38.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a funnel or spoon (c) a tray for spills (d) sugar
39. 39.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
40. 40.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a tray for spills (c) a seed (d) a comb

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