Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 469 · 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? What do we do with “spoons of baking soda”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a mirror (c) an empty bottle (d) a funnel or spoon
3. 3.🧺 Which of these is needed for the fizzy balloon? (a) a funnel or spoon (b) sugar (c) a seed (d) a mirror
4. 4.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) it shrinks (d) there is no change
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) a funnel or spoon (c) a tray for spills (d) baking soda
6. 6.🔍 Which is the odd one out? (a) tamarind water (b) orange juice (c) vinegar (d) plain water
7. 7.⚖️ 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) the kind of balloon (d) spoons of baking soda
8. 8.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
9. 9.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) keep it away from eyes (d) put it in your mouth
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we change it (c) we keep it the same
11. 11.⚖️ 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
12. 12.⚖️ 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
13. 13.🔮 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
14. 14.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) sugar (c) a tray for spills (d) a balloon
16. 16.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
17. 17.🔍 Which is the odd one out? (a) vinegar (b) tamarind water (c) curd (d) baking soda water
18. 18.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
19. 19.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) a base (c) neutral
20. 20.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a battery cell (c) a comb (d) vinegar
21. 21.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) gas is made inside (d) the bottle shrinks
22. 22.True or false: a battery cell is needed for the fizzy balloon. (a) True (b) False
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the amount of vinegar (c) the kind of balloon (d) size of the balloon
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we keep it the same (b) we measure it (c) we change it
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) True (b) False
26. 26.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) True (b) False
28. 28.🫧 Which of these is neutral? (a) curd (b) soap solution (c) sugar water (d) lemon juice
29. 29.🫧 Which of these is an acid? (a) salt water (b) vinegar (c) soap solution (d) sugar water
30. 30.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) it glows in the dark (c) it turns to ice (d) nothing at all
31. 31.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) salt water (d) curd
32. 32.🫧 Which of these is an acid? (a) baking soda water (b) soap solution (c) plain water (d) tamarind water
33. 33.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
34. 34.True or false: curd is an acid. (a) False (b) True
35. 35.True or false: sugar water is an acid. (a) False (b) True
36. 36.True or false: a balloon is needed for the fizzy balloon. (a) False (b) True
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) vinegar (c) a tray for spills (d) a seed
39. 39.True or false: lemon juice is an acid. (a) False (b) True
40. 40.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) an ingredient ran out (c) the balloon got cold (d) the bottle got tired

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