Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 100 · 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: plain water is neutral. (a) False (b) True
2. 2.🫧 Which of these is an acid? (a) sugar water (b) soap solution (c) detergent water (d) curd
3. 3.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
4. 4.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) sugar (c) baking soda (d) a tray for spills
5. 5.⚖️ 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 kind of balloon
6. 6.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
7. 7.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) it is only melting (c) no, nothing changes (d) yes, a new gas forms
8. 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) a mirror (d) a tray for spills
9. 9.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) keep it away from eyes (c) seal it in a glass jar (d) put it in your mouth
10. 10.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
11. 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we keep it the same (c) we change it
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) sugar (c) a tray for spills (d) an empty bottle
14. 14.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) baking soda (c) a funnel or spoon (d) a battery cell
15. 15.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) outside air gets in (c) vinegar is hot (d) gas is made inside
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon
17. 17.🫧 Which of these is an acid? (a) tamarind water (b) soap solution (c) sugar water (d) salt water
18. 18.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a funnel or spoon (c) a seed (d) vinegar
20. 20.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
21. 21.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the gas froze (c) the balloon got cold (d) an ingredient ran out
22. 22.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
23. 23.⚖️ 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
24. 24.True or false: vinegar is a base. (a) False (b) True
25. 25.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) rub it hard (c) add baking soda (d) ignore it
26. 26.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) vinegar (c) an empty bottle (d) a seed
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a balloon (c) a battery cell (d) baking soda
28. 28.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) the kind of balloon (c) spoons of baking soda (d) the same bottle
30. 30.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
31. 31.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) a mirror (c) a comb (d) a seed
32. 32.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
33. 33.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they react (c) they float apart (d) they become magnets
34. 34.🔍 Which is the odd one out? (a) orange juice (b) vinegar (c) sugar water (d) tamarind water
35. 35.🫧 Which of these is a base? (a) lemon juice (b) tamarind water (c) plain water (d) soap solution
36. 36.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
37. 37.🔍 Which is the odd one out? (a) tamarind water (b) vinegar (c) salt water (d) orange juice
38. 38.True or false: lemon juice is an acid. (a) False (b) True
39. 39.🧺 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 comb (d) vinegar
40. 40.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed

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