Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 231 · 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? Which of these is the one thing we change? (a) the amount of vinegar (b) the kind of balloon (c) the same bottle (d) spoons of baking soda
2. 2.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) keep it away from eyes (c) seal it in a glass jar (d) put it in your mouth
3. 3.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a comb (c) a funnel or spoon (d) a mirror
4. 4.True or false: curd is an acid. (a) False (b) True
5. 5.🫧 Which of these is a base? (a) tamarind water (b) baking soda water (c) orange juice (d) salt water
6. 6.True or false: orange juice is neutral. (a) False (b) True
7. 7.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the gas froze (c) the bottle got tired (d) the balloon got cold
8. 8.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
9. 9.⚖️ 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
10. 10.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a battery cell (c) a balloon (d) a comb
11. 11.⚖️ 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
12. 12.🔍 Which is the odd one out? (a) tamarind water (b) orange juice (c) detergent water (d) vinegar
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) the amount of vinegar (c) the same bottle (d) size of the balloon
14. 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) a battery cell (d) baking soda
15. 15.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) very little fizzing (c) a huge eruption (d) the balloon bursts
16. 16.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
17. 17.True or false: salt water is a base. (a) True (b) False
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 amount of vinegar”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the kind of balloon (b) spoons of baking soda (c) size of the balloon
21. 21.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a funnel or spoon (c) a balloon (d) a battery cell
22. 22.⚖️ 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 same bottle (c) size of the balloon
23. 23.🔍 Which is the odd one out? (a) plain water (b) lemon juice (c) salt water (d) sugar water
24. 24.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a comb (c) sugar (d) an empty bottle
25. 25.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) the bottle shrinks (d) outside air gets in
26. 26.True or false: a balloon is needed for the fizzy balloon. (a) False (b) True
27. 27.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a mirror (c) vinegar (d) a balloon
28. 28.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
29. 29.🫧 Is curd an acid, a base or neutral? (a) an acid (b) a base (c) neutral
30. 30.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they freeze (c) they float apart (d) they become magnets
31. 31.🔍 Which is the odd one out? (a) soap solution (b) orange juice (c) baking soda water (d) detergent water
32. 32.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) False (b) True
34. 34.🔮 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
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.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) vinegar (c) a comb (d) an empty bottle
37. 37.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
38. 38.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we change it (c) we keep it the same
40. 40.True or false: vinegar is neutral. (a) True (b) False

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