Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 433 · 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.True or false: lemon juice is an acid. (a) True (b) False
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
3. 3.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) ignore it (c) rinse with clean water (d) rub it hard
4. 4.⚖️ 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 change it (c) we measure it
5. 5.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) seal it in a glass jar (d) keep it away from eyes
6. 6.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
7. 7.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
8. 8.🔍 Which is the odd one out? (a) plain water (b) tamarind water (c) lemon juice (d) curd
9. 9.⚖️ 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
10. 10.True or false: soap solution is a base. (a) True (b) False
11. 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) a funnel or spoon (c) an empty bottle (d) baking soda
12. 12.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a tray for spills (c) a balloon (d) a seed
13. 13.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a mirror (c) a tray for spills (d) a magnet
14. 14.⚖️ 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
15. 15.🔍 Which is the odd one out? (a) vinegar (b) curd (c) baking soda water (d) lemon juice
16. 16.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) it is only melting (c) yes, a new gas forms (d) no, nothing changes
17. 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the same bottle
18. 18.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we keep it the same (b) we measure it (c) we change it
20. 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a funnel or spoon (c) a mirror (d) vinegar
21. 21.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a tray for spills (c) a mirror (d) a funnel or spoon
22. 22.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) baking soda (c) a tray for spills (d) a funnel or spoon
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) the kind of balloon (c) the same bottle (d) size of the balloon
25. 25.True or false: plain water is neutral. (a) False (b) True
26. 26.⚖️ 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
27. 27.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
28. 28.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) vinegar (c) a comb (d) a funnel or spoon
29. 29.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) a huge eruption (c) the balloon bursts (d) very little fizzing
30. 30.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) the bottle shrinks (d) gas is made inside
31. 31.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
32. 32.🫧 Which of these is neutral? (a) vinegar (b) lemon juice (c) plain water (d) orange juice
33. 33.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
34. 34.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
35. 35.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) False (b) True
37. 37.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a balloon (c) a magnet (d) an empty bottle
38. 38.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
39. 39.⚖️ 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
40. 40.True or false: vinegar is not needed for the fizzy balloon. (a) True (b) False

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