Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 476 · 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: a tray for spills is needed for the fizzy balloon. (a) True (b) False
2. 2.🫧 Which of these is neutral? (a) tamarind water (b) salt water (c) detergent water (d) soap solution
3. 3.🫧 Is curd an acid, a base or neutral? (a) an acid (b) a base (c) neutral
4. 4.🫧 Which of these is an acid? (a) plain water (b) lemon juice (c) salt water (d) baking soda water
5. 5.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
6. 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a battery cell (c) baking soda (d) vinegar
7. 7.🫧 Which of these is a base? (a) plain water (b) soap solution (c) tamarind water (d) salt water
8. 8.🫧 Which of these is a base? (a) vinegar (b) curd (c) salt water (d) baking soda water
9. 9.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) add baking soda (d) rinse with clean water
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the same bottle (c) size of the balloon
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.True or false: plain water is neutral. (a) True (b) False
13. 13.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) an acid (c) neutral
14. 14.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
15. 15.⚖️ 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
16. 16.⚖️ 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
17. 17.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) it turns to honey (d) very little fizzing
18. 18.True or false: a mirror is needed for the fizzy balloon. (a) False (b) True
19. 19.🧺 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) a funnel or spoon
20. 20.True or false: tamarind water is neutral. (a) False (b) True
21. 21.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) there is no change (c) it shrinks (d) it grows bigger
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) True (b) False
23. 23.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) shake it near your face (d) seal it in a glass jar
24. 24.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
25. 25.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) an empty bottle (c) a seed (d) a tray for spills
26. 26.🔍 Which is the odd one out? (a) tamarind water (b) soap solution (c) baking soda water (d) detergent water
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a balloon (c) an empty bottle (d) baking soda
28. 28.🫧 Which of these is neutral? (a) detergent water (b) curd (c) tamarind water (d) sugar water
29. 29.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) carbon dioxide (c) hydrogen (d) oxygen
30. 30.🧺 Which of these is not needed for the fizzy balloon? (a) a mirror (b) vinegar (c) an empty bottle (d) a balloon
31. 31.True or false: plain water is a base. (a) False (b) True
32. 32.🫧 Which of these is an acid? (a) vinegar (b) plain water (c) sugar water (d) salt water
33. 33.🫧 Which of these is an acid? (a) sugar water (b) tamarind water (c) soap solution (d) plain water
34. 34.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) baking soda (c) a comb (d) sugar
35. 35.⚖️ 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) size of the balloon (d) the amount of vinegar
36. 36.🔍 Which is the odd one out? (a) salt water (b) lemon juice (c) tamarind water (d) vinegar
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
38. 38.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the gas froze (c) the bottle got tired (d) the balloon got cold
39. 39.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
40. 40.True or false: a comb is needed for the fizzy balloon. (a) True (b) False

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