Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 305 · 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.🎈 Why does the balloon blow up? (a) vinegar is hot (b) the bottle shrinks (c) gas is made inside (d) outside air gets in
2. 2.⚖️ 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
3. 3.True or false: salt water is an acid. (a) True (b) False
4. 4.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) very little fizzing (d) the balloon bursts
5. 5.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) seal it in a glass jar (d) shake it near your face
6. 6.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it grows bigger (d) it turns blue
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the amount of vinegar (c) the same bottle (d) size of the balloon
8. 8.⚖️ 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
9. 9.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
10. 10.True or false: baking soda water is a base. (a) True (b) False
11. 11.🫧 Which of these is an acid? (a) sugar water (b) baking soda water (c) lemon juice (d) salt water
12. 12.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) vinegar (c) a balloon (d) a comb
13. 13.🧺 Which of these is needed for the fizzy balloon? (a) an empty bottle (b) a mirror (c) a comb (d) a seed
14. 14.True or false: a mirror is not needed for the fizzy balloon. (a) True (b) False
15. 15.⚖️ 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
16. 16.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
17. 17.🧺 Which of these is not needed for the fizzy balloon? (a) sugar (b) an empty bottle (c) a balloon (d) baking soda
18. 18.⚖️ 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) spoons of baking soda (c) the kind of balloon (d) size of the balloon
19. 19.⚖️ 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
20. 20.True or false: salt water is a base. (a) True (b) False
21. 21.⚖️ 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
22. 22.🫧 Which of these is a base? (a) lemon juice (b) tamarind water (c) baking soda water (d) curd
23. 23.🫧 Which of these is an acid? (a) soap solution (b) vinegar (c) sugar water (d) salt water
24. 24.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a balloon (c) a battery cell (d) a tray for spills
26. 26.⚖️ 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
27. 27.True or false: sugar is not needed for the fizzy balloon. (a) True (b) False
28. 28.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
29. 29.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
30. 30.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) ignore it (c) rub it hard (d) rinse with clean water
31. 31.🔍 Which is the odd one out? (a) sugar water (b) detergent water (c) salt water (d) plain water
32. 32.⚖️ 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
33. 33.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
34. 34.🫧 Which of these is a base? (a) salt water (b) soap solution (c) lemon juice (d) vinegar
35. 35.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a funnel or spoon (c) a seed (d) a balloon
36. 36.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
37. 37.⚖️ 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
38. 38.⚖️ 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
39. 39.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a balloon (c) vinegar (d) a magnet
40. 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we measure it (c) we keep it the same

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