Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 497 · 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.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
2. 2.🎈 Why does the balloon blow up? (a) vinegar is hot (b) the bottle shrinks (c) gas is made inside (d) outside air gets in
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) baking soda (c) a balloon (d) a funnel or spoon
4. 4.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) tamarind water (b) curd (c) lemon juice (d) soap solution
6. 6.🔍 Which is the odd one out? (a) orange juice (b) baking soda water (c) lemon juice (d) vinegar
7. 7.🔍 Which is the odd one out? (a) curd (b) lemon juice (c) detergent water (d) vinegar
8. 8.True or false: baking soda water is a base. (a) True (b) False
9. 9.⚖️ 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
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a seed (c) a funnel or spoon (d) an empty bottle
11. 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we change it (c) we measure it
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
13. 13.⚖️ 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) False (b) True
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we change it (c) we measure it
15. 15.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rinse with clean water (c) rub it hard (d) ignore it
16. 16.⚖️ 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 kind of balloon (c) size of the balloon (d) the amount of vinegar
17. 17.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
18. 18.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) a huge eruption (c) very little fizzing (d) the balloon bursts
19. 19.🫧 Which of these is neutral? (a) curd (b) soap solution (c) salt water (d) orange juice
20. 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) an empty bottle (c) baking soda (d) a comb
21. 21.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
22. 22.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
23. 23.True or false: lemon juice is an acid. (a) True (b) False
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) False (b) True
25. 25.🫧 Is curd an acid, a base or neutral? (a) neutral (b) an acid (c) a base
26. 26.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the bottle got tired (c) an ingredient ran out (d) the balloon got cold
27. 27.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) plain water
28. 28.True or false: soap solution is neutral. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) soap solution (d) sugar water
30. 30.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
31. 31.⚖️ 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) size of the balloon (c) the same bottle (d) the amount of vinegar
32. 32.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
33. 33.🫧 Which of these is neutral? (a) lemon juice (b) detergent water (c) sugar water (d) curd
34. 34.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
35. 35.True or false: detergent water is a base. (a) False (b) True
36. 36.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we measure it (c) we keep it the same
38. 38.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it shrinks (c) it grows bigger (d) it turns blue
39. 39.⚖️ 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
40. 40.⚖️ 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 measure it (c) we change it

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