Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 222 · 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: the amount of vinegar is the one thing we change. (a) True (b) False
2. 2.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) it shrinks (d) there is no change
3. 3.⚖️ 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
4. 4.🫧 Which of these is an acid? (a) soap solution (b) sugar water (c) baking soda water (d) lemon juice
5. 5.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) lots of fizzy bubbles (c) it turns to ice (d) nothing at all
6. 6.⚖️ 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) False (b) True
7. 7.🫧 Which of these is a base? (a) tamarind water (b) plain water (c) vinegar (d) baking soda water
8. 8.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
9. 9.True or false: curd is a base. (a) False (b) True
10. 10.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) very little fizzing (d) it turns to honey
11. 11.⚖️ 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
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we change it (c) we keep it the same
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) the amount of vinegar (c) spoons of baking soda (d) the same bottle
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda
16. 16.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
17. 17.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) a balloon (c) vinegar (d) baking soda
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) a tray for spills (c) vinegar (d) a balloon
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a mirror (c) a funnel or spoon (d) baking soda
20. 20.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) spoons of baking soda (c) size of the balloon (d) the kind of balloon
22. 22.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) detergent water (b) curd (c) vinegar (d) orange juice
24. 24.🫧 Which of these is neutral? (a) baking soda water (b) plain water (c) tamarind water (d) lemon juice
25. 25.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) ignore it (d) rinse with clean water
26. 26.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
27. 27.🔍 Which is the odd one out? (a) tamarind water (b) soap solution (c) detergent water (d) baking soda water
28. 28.⚖️ 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 kind of balloon
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) True (b) False
30. 30.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) gas is made inside (d) the bottle shrinks
31. 31.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
32. 32.True or false: baking soda water is a base. (a) True (b) False
33. 33.True or false: lemon juice is an acid. (a) False (b) True
34. 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) sugar (c) a balloon (d) an empty bottle
35. 35.⚖️ 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
36. 36.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the balloon got cold (c) an ingredient ran out (d) the gas froze
37. 37.🫧 Which of these is a base? (a) tamarind water (b) salt water (c) soap solution (d) plain water
38. 38.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they freeze (c) they float apart (d) they become magnets
39. 39.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
40. 40.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True

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