Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 373 · 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 balloon is needed for the fizzy balloon. (a) True (b) False
2. 2.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
3. 3.⚖️ 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
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the same bottle (b) size of the balloon (c) spoons of baking soda
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a battery cell (c) a tray for spills (d) baking soda
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.🫧 Which of these is an acid? (a) soap solution (b) plain water (c) detergent water (d) vinegar
8. 8.⚖️ 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
9. 9.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) outside air gets in (d) gas is made inside
10. 10.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) sugar (c) a balloon (d) an empty bottle
11. 11.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) an ingredient ran out (c) the bottle got tired (d) the balloon got cold
12. 12.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) sugar (c) baking soda (d) a magnet
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) size of the balloon (c) spoons of baking soda (d) the kind of balloon
14. 14.True or false: salt water is a base. (a) False (b) True
15. 15.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
16. 16.True or false: salt water is neutral. (a) False (b) True
17. 17.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) carbon dioxide (c) helium (d) hydrogen
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a balloon (c) vinegar (d) a funnel or spoon
20. 20.True or false: vinegar is an acid. (a) False (b) True
21. 21.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) ignore it (c) rub it hard (d) add baking soda
22. 22.🔍 Which is the odd one out? (a) lemon juice (b) curd (c) baking soda water (d) tamarind water
23. 23.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) very little fizzing (d) the balloon bursts
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) False (b) True
25. 25.True or false: vinegar is neutral. (a) True (b) False
26. 26.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
27. 27.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) put it in your mouth (c) shake it near your face (d) keep it away from eyes
28. 28.🫧 Which of these is a base? (a) salt water (b) vinegar (c) soap solution (d) tamarind water
29. 29.🫧 Which of these is an acid? (a) lemon juice (b) detergent water (c) plain water (d) baking soda water
30. 30.True or false: plain water is neutral. (a) True (b) False
31. 31.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
32. 32.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
33. 33.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a comb (c) a balloon (d) vinegar
34. 34.True or false: vinegar is a base. (a) False (b) True
35. 35.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a comb (c) a tray for spills (d) a balloon
36. 36.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
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 grows bigger (d) it turns blue
38. 38.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a tray for spills (c) baking soda (d) a seed
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the amount of vinegar
40. 40.🫧 Which of these is neutral? (a) sugar water (b) curd (c) tamarind water (d) baking soda water

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