Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 332 · 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.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) very little fizzing (d) it turns to honey
2. 2.🫧 Is curd an acid, a base or neutral? (a) an acid (b) neutral (c) a base
3. 3.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
4. 4.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
5. 5.True or false: baking soda water is an acid. (a) True (b) False
6. 6.🧺 Which of these is not needed for the fizzy balloon? (a) a magnet (b) a funnel or spoon (c) baking soda (d) a tray for spills
7. 7.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
8. 8.⚖️ 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 same bottle (c) the kind of balloon (d) size of the balloon
9. 9.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a balloon (c) a funnel or spoon (d) sugar
10. 10.⚖️ 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
11. 11.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) baking soda (c) a magnet (d) a mirror
12. 12.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a mirror (c) a balloon (d) a tray for spills
13. 13.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
14. 14.True or false: orange juice is an acid. (a) True (b) False
15. 15.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
16. 16.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they become magnets (c) they float apart (d) they freeze
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) vinegar (c) a tray for spills (d) an empty bottle
18. 18.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
19. 19.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) rub it hard (c) add baking soda (d) ignore it
20. 20.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a mirror (c) a comb (d) a tray for spills
21. 21.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) oxygen (c) helium (d) carbon dioxide
22. 22.🫧 Which of these is a base? (a) salt water (b) vinegar (c) orange juice (d) soap solution
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the same bottle (b) spoons of baking soda (c) the amount of vinegar (d) size of the balloon
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we change it (c) we measure it
25. 25.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) keep it away from eyes (d) shake it near your face
26. 26.🫧 Which of these is an acid? (a) soap solution (b) lemon juice (c) salt water (d) detergent water
27. 27.🔍 Which is the odd one out? (a) plain water (b) salt water (c) sugar water (d) lemon juice
28. 28.⚖️ 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
29. 29.True or false: a magnet is not needed for the fizzy balloon. (a) True (b) False
30. 30.⚖️ 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
31. 31.🫧 Which of these is neutral? (a) lemon juice (b) vinegar (c) curd (d) plain water
32. 32.True or false: curd is neutral. (a) False (b) True
33. 33.🔮 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
34. 34.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
35. 35.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) tamarind water (d) soap solution
36. 36.🫧 Which of these is a base? (a) baking soda water (b) curd (c) lemon juice (d) salt water
37. 37.True or false: tamarind water is a base. (a) False (b) True
38. 38.🫧 Which of these is neutral? (a) lemon juice (b) detergent water (c) sugar water (d) soap solution
39. 39.True or false: detergent water is an acid. (a) True (b) False
40. 40.⚖️ 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 amount of vinegar (c) spoons of baking soda

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