Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 269 · 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? True or false: the amount of vinegar is the one thing we change. (a) True (b) False
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the kind of balloon (c) size of the balloon
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.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) add baking soda (c) rinse with clean water (d) rub it hard
5. 5.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
6. 6.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) oxygen (c) carbon dioxide (d) hydrogen
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) the same bottle (c) the kind of balloon (d) the amount of vinegar
8. 8.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a magnet (c) vinegar (d) a mirror
9. 9.🔍 Which is the odd one out? (a) curd (b) vinegar (c) tamarind water (d) soap solution
10. 10.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) a huge eruption (c) very little fizzing (d) it turns to honey
11. 11.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they react (d) they float apart
12. 12.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
13. 13.True or false: lemon juice is an acid. (a) True (b) False
14. 14.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
15. 15.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
16. 16.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the gas froze (c) an ingredient ran out (d) the balloon got cold
17. 17.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) gas is made inside (d) outside air gets in
18. 18.🫧 Which of these is an acid? (a) plain water (b) baking soda water (c) salt water (d) tamarind water
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we change it (c) we measure it
20. 20.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) an empty bottle (c) vinegar (d) a funnel or spoon
21. 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) a balloon (d) sugar
22. 22.🔍 Which is the odd one out? (a) sugar water (b) baking soda water (c) plain water (d) salt water
23. 23.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) neutral (c) a base
24. 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) vinegar (c) an empty bottle (d) a battery cell
25. 25.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
26. 26.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it grows bigger (c) it shrinks (d) it turns blue
27. 27.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
28. 28.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) shake it near your face (c) seal it in a glass jar (d) put it in your mouth
29. 29.⚖️ 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
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a balloon (c) vinegar (d) a magnet
31. 31.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) neutral (c) an acid
32. 32.⚖️ 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
33. 33.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
35. 35.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
36. 36.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
37. 37.⚖️ 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
38. 38.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
39. 39.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) an empty bottle (c) a tray for spills (d) a magnet
40. 40.⚖️ 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 same bottle (c) the kind of balloon (d) spoons of baking soda

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