Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 42 · 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) an empty bottle (b) baking soda (c) vinegar (d) a comb
2. 2.⚖️ 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) the kind of balloon (d) size of the balloon
3. 3.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they freeze (c) they become magnets (d) they react
4. 4.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
5. 5.⚖️ 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 change it (c) we measure it
6. 6.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) it turns to honey (c) very little fizzing (d) a huge eruption
7. 7.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) vinegar (c) a seed (d) a battery cell
8. 8.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) vinegar (c) a tray for spills (d) a comb
9. 9.🔍 Which is the odd one out? (a) salt water (b) plain water (c) sugar water (d) baking soda water
10. 10.True or false: orange juice is neutral. (a) True (b) False
11. 11.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) rinse with clean water (c) add baking soda (d) ignore it
12. 12.True or false: soap solution is a base. (a) False (b) True
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
14. 14.⚖️ 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
15. 15.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
16. 16.True or false: vinegar is an acid. (a) False (b) True
17. 17.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) sugar (c) a seed (d) baking soda
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) False (b) True
19. 19.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) the bottle shrinks (d) gas is made inside
20. 20.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
21. 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a battery cell (c) vinegar (d) a balloon
22. 22.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
23. 23.🫧 Which of these is neutral? (a) soap solution (b) sugar water (c) baking soda water (d) orange juice
24. 24.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) shake it near your face (c) keep it away from eyes (d) put it in your mouth
25. 25.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it grows bigger (c) there is no change (d) it turns blue
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) the kind of balloon (c) spoons of baking soda
27. 27.True or false: tamarind water is an acid. (a) True (b) False
28. 28.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a funnel or spoon (c) vinegar (d) a magnet
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) the kind of balloon (c) the amount of vinegar (d) spoons of baking soda
30. 30.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
31. 31.True or false: plain water is an acid. (a) True (b) False
32. 32.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the bottle got tired (c) an ingredient ran out (d) the balloon got cold
33. 33.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) oxygen (c) carbon dioxide (d) hydrogen
34. 34.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) vinegar (d) salt water
35. 35.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) it is only melting (c) yes, a new gas forms (d) no, nothing changes
36. 36.🫧 Which of these is an acid? (a) salt water (b) detergent water (c) lemon juice (d) plain water
37. 37.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
38. 38.⚖️ 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
39. 39.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
40. 40.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) False (b) True

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