Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 35 · 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.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
3. 3.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
4. 4.🔮 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
5. 5.🫧 Which of these is neutral? (a) curd (b) orange juice (c) vinegar (d) sugar water
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) False (b) True
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a mirror (c) a balloon (d) vinegar
8. 8.True or false: a battery cell is not needed for the fizzy balloon. (a) True (b) False
9. 9.🛟 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
10. 10.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
11. 11.⚖️ 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
12. 12.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
13. 13.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) baking soda (c) a battery cell (d) a tray for spills
14. 14.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) gas is made inside (d) the bottle shrinks
15. 15.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) helium (c) oxygen (d) carbon dioxide
16. 16.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
17. 17.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they freeze (c) they react (d) they become magnets
18. 18.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) salt water (d) orange juice
19. 19.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
20. 20.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False
21. 21.🧺 Which of these is not needed for the fizzy balloon? (a) a magnet (b) baking soda (c) a balloon (d) vinegar
22. 22.True or false: a battery cell is needed for the fizzy balloon. (a) True (b) False
23. 23.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the gas froze (d) the bottle got tired
24. 24.🔍 Which is the odd one out? (a) soap solution (b) plain water (c) detergent water (d) baking soda water
25. 25.🫧 Which of these is an acid? (a) plain water (b) lemon juice (c) sugar water (d) soap solution
26. 26.⚖️ 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
27. 27.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a mirror (c) a balloon (d) a comb
28. 28.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) keep it away from eyes (d) put it in your mouth
29. 29.⚖️ 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
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) a balloon (d) a seed
31. 31.⚖️ 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
32. 32.⚖️ 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
33. 33.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it turns blue (c) it grows bigger (d) it shrinks
34. 34.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
36. 36.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) False (b) True
38. 38.True or false: a mirror is not needed for the fizzy balloon. (a) True (b) False
39. 39.🫧 Which of these is an acid? (a) plain water (b) tamarind water (c) sugar water (d) detergent water
40. 40.🔍 Which is the odd one out? (a) plain water (b) salt water (c) baking soda water (d) sugar water

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