Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 492 · 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: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
2. 2.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) it turns to honey (c) a huge eruption (d) very little fizzing
3. 3.⚖️ 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
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) an empty bottle (c) vinegar (d) a battery cell
5. 5.True or false: tamarind water is an acid. (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 amount of vinegar (b) the same bottle (c) spoons of baking soda (d) size of the balloon
7. 7.⚖️ 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
8. 8.🧺 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 funnel or spoon (d) a magnet
9. 9.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a comb (c) a tray for spills (d) sugar
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
11. 11.True or false: lemon juice is an acid. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) curd (b) tamarind water (c) lemon juice (d) salt water
13. 13.True or false: salt water is neutral. (a) True (b) False
14. 14.True or false: curd is an acid. (a) False (b) True
15. 15.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) neutral (c) a base
16. 16.⚖️ 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 keep it the same (c) we measure it
17. 17.🔍 Which is the odd one out? (a) orange juice (b) sugar water (c) curd (d) vinegar
18. 18.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they float apart (c) they freeze (d) they react
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a mirror (c) a balloon (d) a tray for spills
20. 20.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
21. 21.🫧 Which of these is an acid? (a) baking soda water (b) detergent water (c) soap solution (d) orange juice
22. 22.⚖️ 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
23. 23.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) yes, a new gas forms (c) no, nothing changes (d) it is only dissolving
24. 24.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) seal it in a glass jar (d) shake it near your face
25. 25.True or false: curd is neutral. (a) False (b) True
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) False (b) True
27. 27.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a comb (c) a mirror (d) a balloon
28. 28.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rinse with clean water (c) add baking soda (d) rub it hard
29. 29.⚖️ 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
30. 30.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the bottle got tired (c) the gas froze (d) an ingredient ran out
31. 31.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
32. 32.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) False (b) True
34. 34.🫧 Which of these is neutral? (a) lemon juice (b) tamarind water (c) plain water (d) orange juice
35. 35.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a battery cell (c) vinegar (d) a funnel or spoon
36. 36.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a comb (c) a tray for spills (d) a balloon
37. 37.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) vinegar
38. 38.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
39. 39.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a magnet (c) a comb (d) baking soda
40. 40.🧺 Which of these is not needed for the fizzy balloon? (a) a magnet (b) a balloon (c) baking soda (d) vinegar

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