Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 704 · 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 magnet (b) an empty bottle (c) vinegar (d) baking soda
2. 2.True or false: orange juice is a base. (a) False (b) True
3. 3.True or false: baking soda water is a base. (a) False (b) True
4. 4.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we change it (b) we measure it (c) we keep it the same
6. 6.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) lots of fizzy bubbles (c) nothing at all (d) it glows in the dark
7. 7.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
8. 8.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) gas is made inside (d) the bottle shrinks
9. 9.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) the balloon bursts (c) very little fizzing (d) a huge eruption
10. 10.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a mirror (c) baking soda (d) a battery cell
11. 11.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
12. 12.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) an empty bottle (c) a seed (d) a battery cell
13. 13.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
14. 14.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
15. 15.🫧 Which of these is neutral? (a) salt water (b) curd (c) soap solution (d) baking soda water
16. 16.🔍 Which is the odd one out? (a) vinegar (b) orange juice (c) tamarind water (d) detergent water
17. 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the amount of vinegar
18. 18.🫧 Which of these is an acid? (a) sugar water (b) salt water (c) orange juice (d) detergent water
19. 19.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) hydrogen (c) carbon dioxide (d) helium
20. 20.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) rinse with clean water (d) ignore it
21. 21.🫧 Which of these is a base? (a) tamarind water (b) baking soda water (c) curd (d) lemon juice
22. 22.⚖️ 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
23. 23.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the balloon got cold (c) the bottle got tired (d) the gas froze
24. 24.⚖️ 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
25. 25.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) a base (c) neutral
26. 26.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.True or false: plain water is an acid. (a) False (b) True
29. 29.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a tray for spills (c) a comb (d) a funnel or spoon
30. 30.🔍 Which is the odd one out? (a) soap solution (b) curd (c) tamarind water (d) lemon juice
31. 31.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) it shrinks (d) there is no change
32. 32.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a tray for spills (c) a balloon (d) a battery cell
33. 33.🧺 Which of these is needed for the fizzy balloon? (a) a funnel or spoon (b) a seed (c) a comb (d) a battery cell
34. 34.⚖️ 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
35. 35.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
36. 36.⚖️ 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 keep it the same (c) we measure it
37. 37.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
38. 38.True or false: detergent water is an acid. (a) True (b) False
39. 39.True or false: salt water is neutral. (a) True (b) False
40. 40.True or false: sugar water is neutral. (a) False (b) True

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