Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 810 · 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) very little fizzing (c) the balloon bursts (d) it turns to honey
2. 2.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
3. 3.🎈 Why does the balloon blow up? (a) outside air gets in (b) gas is made inside (c) vinegar is hot (d) the bottle shrinks
4. 4.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
5. 5.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
6. 6.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) neutral (c) an acid
7. 7.🫧 Which of these is neutral? (a) lemon juice (b) vinegar (c) salt water (d) orange juice
8. 8.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
9. 9.🫧 Which of these is neutral? (a) vinegar (b) baking soda water (c) orange juice (d) plain water
10. 10.⚖️ 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 keep it the same (c) we change it
11. 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a comb (c) vinegar (d) an empty bottle
12. 12.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) keep it away from eyes (d) put it in your mouth
13. 13.🫧 Which of these is a base? (a) tamarind water (b) plain water (c) curd (d) baking soda water
14. 14.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it shrinks (c) there is no change (d) it grows bigger
15. 15.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) no, nothing changes (c) yes, a new gas forms (d) it is only dissolving
16. 16.True or false: detergent water is an acid. (a) True (b) False
17. 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) size of the balloon (c) the amount of vinegar (d) the same bottle
18. 18.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) rinse with clean water (d) add baking soda
19. 19.True or false: a magnet is not needed for the fizzy balloon. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) soap solution (d) tamarind water
21. 21.⚖️ 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
22. 22.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
23. 23.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a funnel or spoon (c) a comb (d) an empty bottle
24. 24.⚖️ 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
25. 25.True or false: curd is neutral. (a) False (b) True
26. 26.🫧 Which of these is a base? (a) curd (b) soap solution (c) tamarind water (d) sugar water
27. 27.True or false: lemon juice is neutral. (a) False (b) True
28. 28.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) baking soda (c) a mirror (d) a tray for spills
29. 29.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) lots of fizzy bubbles (c) nothing at all (d) it glows in the dark
30. 30.🔍 Which is the odd one out? (a) orange juice (b) baking soda water (c) vinegar (d) lemon juice
31. 31.🫧 Which of these is a base? (a) orange juice (b) vinegar (c) detergent water (d) tamarind water
32. 32.🫧 Which of these is an acid? (a) tamarind water (b) sugar water (c) soap solution (d) plain water
33. 33.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) vinegar (c) a seed (d) a tray for spills
34. 34.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they float apart (d) they react
35. 35.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
37. 37.True or false: plain water is an acid. (a) False (b) True
38. 38.⚖️ 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 measure it (c) we change it
39. 39.🫧 Which of these is an acid? (a) baking soda water (b) sugar water (c) detergent water (d) lemon juice
40. 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) False (b) True

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