Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 195 · 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.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a tray for spills (c) a mirror (d) sugar
2. 2.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) rinse with clean water (c) ignore it (d) add baking soda
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a balloon (c) baking soda (d) a battery cell
5. 5.True or false: vinegar is an acid. (a) False (b) True
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the amount of vinegar
7. 7.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the balloon got cold (c) the gas froze (d) an ingredient ran out
8. 8.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
9. 9.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we measure it (c) we keep it the same
11. 11.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) put it in your mouth (d) keep it away from eyes
12. 12.⚖️ 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
13. 13.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
14. 14.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a funnel or spoon (c) sugar (d) vinegar
15. 15.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it grows bigger (c) it turns blue (d) there is no change
16. 16.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
17. 17.True or false: tamarind water is an acid. (a) True (b) False
18. 18.True or false: a mirror is not needed for the fizzy balloon. (a) True (b) False
19. 19.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) outside air gets in (d) gas is made inside
20. 20.True or false: plain water is a base. (a) True (b) False
21. 21.📘 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
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) True (b) False
23. 23.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) carbon dioxide (c) hydrogen (d) helium
24. 24.True or false: baking soda water is a base. (a) True (b) False
25. 25.🔮 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
26. 26.🔍 Which is the odd one out? (a) salt water (b) plain water (c) detergent water (d) sugar water
27. 27.🔍 Which is the odd one out? (a) salt water (b) plain water (c) sugar water (d) vinegar
28. 28.True or false: lemon juice is an acid. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) soap solution (b) plain water (c) sugar water (d) salt water
30. 30.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
31. 31.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) False (b) True
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
33. 33.⚖️ 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
34. 34.True or false: orange juice is an acid. (a) False (b) True
35. 35.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) size of the balloon (c) the kind of balloon (d) spoons of baking soda
37. 37.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
38. 38.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
39. 39.True or false: salt water is a base. (a) False (b) True
40. 40.⚖️ 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

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