Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 594 · 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.⚖️ 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) True (b) False
2. 2.True or false: a mirror is not needed for the fizzy balloon. (a) True (b) False
3. 3.True or false: salt water is neutral. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) curd (b) detergent water (c) soap solution (d) baking soda water
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda (d) the kind of balloon
6. 6.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) add baking soda (c) rub it hard (d) rinse with clean water
7. 7.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a magnet (c) an empty bottle (d) a comb
8. 8.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
9. 9.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
10. 10.🫧 Which of these is an acid? (a) sugar water (b) soap solution (c) orange juice (d) detergent water
11. 11.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
12. 12.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) an acid (c) neutral
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we change it (c) we measure it
14. 14.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
15. 15.🛟 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
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 measure it (c) we keep it the same
17. 17.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) it turns to honey (c) a huge eruption (d) the balloon bursts
18. 18.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) vinegar (c) a magnet (d) a tray for spills
19. 19.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the bottle got tired (c) an ingredient ran out (d) the gas froze
20. 20.🫧 Which of these is a base? (a) baking soda water (b) vinegar (c) curd (d) sugar water
21. 21.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a battery cell (c) a tray for spills (d) vinegar
22. 22.True or false: plain water is an acid. (a) True (b) False
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) a comb (d) a balloon
24. 24.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a seed (c) a balloon (d) a comb
25. 25.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) baking soda (c) a tray for spills (d) a funnel or spoon
26. 26.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a seed (c) a funnel or spoon (d) a comb
27. 27.🎈 Why does the balloon blow up? (a) outside air gets in (b) gas is made inside (c) the bottle shrinks (d) vinegar is hot
28. 28.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
29. 29.🫧 Which of these is a base? (a) soap solution (b) lemon juice (c) plain water (d) orange juice
30. 30.True or false: soap solution is neutral. (a) True (b) False
31. 31.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) True (b) False
33. 33.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a funnel or spoon (c) sugar (d) a balloon
34. 34.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
35. 35.⚖️ 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
36. 36.⚖️ 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
37. 37.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it turns blue (d) it grows bigger
38. 38.⚖️ 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 measure it (c) we keep it the same
39. 39.True or false: tamarind water is a base. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) detergent water (b) sugar water (c) baking soda water (d) soap solution

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