Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 281 · 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.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
2. 2.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) an empty bottle (c) vinegar (d) a mirror
3. 3.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) lots of fizzy bubbles (c) it glows in the dark (d) nothing at all
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a funnel or spoon (c) a balloon (d) a magnet
5. 5.⚖️ 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
6. 6.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a mirror (c) a magnet (d) baking soda
7. 7.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rinse with clean water (c) rub it hard (d) add baking soda
8. 8.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
9. 9.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it turns blue (d) it grows bigger
10. 10.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) keep it away from eyes (d) shake it near your face
11. 11.🎈 Why does the balloon blow up? (a) outside air gets in (b) gas is made inside (c) the bottle shrinks (d) vinegar is hot
12. 12.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) sugar (d) vinegar
13. 13.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) a huge eruption (d) it turns to honey
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) spoons of baking soda (c) size of the balloon (d) the kind of balloon
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a balloon (c) vinegar (d) a comb
16. 16.🫧 Which of these is an acid? (a) vinegar (b) detergent water (c) soap solution (d) plain water
17. 17.⚖️ 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 measure it (c) we keep it the same
18. 18.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
19. 19.⚖️ 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
20. 20.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the bottle got tired (c) the gas froze (d) the balloon got cold
21. 21.🫧 Is curd an acid, a base or neutral? (a) a base (b) an acid (c) neutral
22. 22.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they float apart (c) they become magnets (d) they react
23. 23.🔍 Which is the odd one out? (a) sugar water (b) soap solution (c) salt water (d) plain water
24. 24.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a magnet (c) an empty bottle (d) a funnel or spoon
25. 25.🧺 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 balloon (d) a mirror
26. 26.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
27. 27.🔍 Which is the odd one out? (a) orange juice (b) salt water (c) curd (d) lemon juice
28. 28.True or false: soap solution is neutral. (a) False (b) True
29. 29.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) oxygen (c) helium (d) carbon dioxide
30. 30.True or false: vinegar is an acid. (a) True (b) False
31. 31.⚖️ 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 keep it the same (c) we measure it
32. 32.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
33. 33.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) an acid (c) a base
34. 34.⚖️ 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) the kind of balloon (c) spoons of baking soda (d) size of the balloon
35. 35.🫧 Which of these is neutral? (a) soap solution (b) vinegar (c) plain water (d) baking soda water
36. 36.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
37. 37.🫧 Which of these is a base? (a) curd (b) soap solution (c) sugar water (d) plain water
38. 38.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) a base (c) neutral
39. 39.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
40. 40.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a seed (c) an empty bottle (d) a battery cell

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