Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 435 · 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? What do we do with “size of the balloon”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) baking soda (c) a comb (d) a tray for spills
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) an empty bottle (c) a tray for spills (d) sugar
4. 4.🔍 Which is the odd one out? (a) soap solution (b) plain water (c) salt water (d) sugar water
5. 5.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
6. 6.⚖️ 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 kind of balloon (d) the amount of vinegar
7. 7.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
8. 8.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
9. 9.🫧 Which of these is a base? (a) tamarind water (b) detergent water (c) plain water (d) sugar water
10. 10.🫧 Which of these is an acid? (a) tamarind water (b) plain water (c) soap solution (d) salt water
11. 11.🫧 Which of these is a base? (a) orange juice (b) curd (c) plain water (d) soap solution
12. 12.🔍 Which is the odd one out? (a) plain water (b) detergent water (c) soap solution (d) baking soda water
13. 13.⚖️ 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
14. 14.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
15. 15.True or false: tamarind water is neutral. (a) True (b) False
16. 16.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) shake it near your face (c) keep it away from eyes (d) put it in your mouth
17. 17.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) hydrogen (c) helium (d) oxygen
18. 18.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they freeze (c) they react (d) they float apart
19. 19.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it grows bigger (c) there is no change (d) it turns blue
20. 20.🫧 Which of these is neutral? (a) curd (b) soap solution (c) detergent water (d) salt water
21. 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) vinegar (c) a funnel or spoon (d) a magnet
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) the amount of vinegar (c) spoons of baking soda (d) the kind of balloon
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
24. 24.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
25. 25.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it turns to ice (c) it glows in the dark (d) lots of fizzy bubbles
26. 26.🫧 Which of these is a base? (a) salt water (b) curd (c) baking soda water (d) sugar water
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
28. 28.True or false: baking soda water is a base. (a) True (b) False
29. 29.🔮 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
30. 30.⚖️ 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
31. 31.🫧 Which of these is neutral? (a) detergent water (b) soap solution (c) plain water (d) tamarind water
32. 32.🫧 Is salt water 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? Which of these is kept the same? (a) spoons of baking soda (b) the amount of vinegar (c) size of the balloon
34. 34.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
35. 35.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) tamarind water (b) detergent water (c) soap solution (d) baking soda water
37. 37.True or false: sugar water is neutral. (a) False (b) True
38. 38.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
39. 39.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
40. 40.⚖️ 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) False (b) True

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