Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 723 · 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.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they freeze (c) they become magnets (d) they float apart
2. 2.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) add baking soda (c) rinse with clean water (d) ignore it
3. 3.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it turns blue (c) it grows bigger (d) it shrinks
4. 4.🔍 Which is the odd one out? (a) curd (b) baking soda water (c) detergent water (d) soap solution
5. 5.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) it turns to honey (c) the balloon bursts (d) a huge eruption
6. 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) baking soda (c) a comb (d) a funnel or spoon
7. 7.⚖️ 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
8. 8.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
9. 9.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
10. 10.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) it turns to ice (c) nothing at all (d) it glows in the dark
11. 11.⚖️ 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
12. 12.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) a comb (c) a magnet (d) a mirror
13. 13.🫧 Which of these is an acid? (a) tamarind water (b) plain water (c) soap solution (d) baking soda water
14. 14.True or false: a magnet is needed for the fizzy balloon. (a) False (b) True
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.🫧 Which of these is an acid? (a) detergent water (b) plain water (c) sugar water (d) vinegar
17. 17.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) shake it near your face (d) seal it in a glass jar
18. 18.🫧 Which of these is neutral? (a) orange juice (b) baking soda water (c) plain water (d) tamarind water
19. 19.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
20. 20.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) sugar water (d) baking soda water
21. 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) baking soda (d) a seed
22. 22.⚖️ 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
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a balloon (c) a magnet (d) an empty bottle
24. 24.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
25. 25.True or false: soap solution is an acid. (a) True (b) False
26. 26.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
27. 27.🫧 Which of these is neutral? (a) sugar water (b) soap solution (c) vinegar (d) lemon juice
28. 28.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
29. 29.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
30. 30.🫧 Is curd an acid, a base or neutral? (a) an acid (b) a base (c) neutral
31. 31.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) vinegar (c) a magnet (d) a battery cell
32. 32.⚖️ 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 measure it (c) we keep it the same
33. 33.⚖️ 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 keep it the same (c) we measure it
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) an empty bottle (c) a mirror (d) baking soda
35. 35.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
36. 36.True or false: lemon juice is neutral. (a) True (b) False
37. 37.⚖️ 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) size of the balloon (c) the same bottle (d) spoons of baking soda
38. 38.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
39. 39.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
40. 40.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids