Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 622 · 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: tamarind water is an acid. (a) False (b) True
2. 2.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
3. 3.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
4. 4.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a battery cell (c) an empty bottle (d) sugar
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the kind of balloon (b) the amount of vinegar (c) the same bottle (d) spoons of baking soda
6. 6.⚖️ 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 keep it the same (c) we change it
7. 7.⚖️ 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
8. 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) the same bottle (c) spoons of baking soda (d) the amount of vinegar
9. 9.⚖️ 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 keep it the same (c) we change it
10. 10.True or false: lemon juice is an acid. (a) True (b) False
11. 11.True or false: tamarind water is a base. (a) False (b) True
12. 12.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) vinegar (c) a magnet (d) an empty bottle
14. 14.⚖️ 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
15. 15.True or false: baking soda water is a base. (a) True (b) False
16. 16.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
17. 17.🫧 Which of these is a base? (a) sugar water (b) soap solution (c) salt water (d) curd
18. 18.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
19. 19.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) an acid (c) neutral
20. 20.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) a huge eruption (c) it turns to honey (d) very little fizzing
21. 21.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it shrinks (c) there is no change (d) it grows bigger
22. 22.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) vinegar (d) soap solution
23. 23.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
24. 24.⚖️ 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 keep it the same (c) we measure it
25. 25.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
26. 26.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
27. 27.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they react (d) they float apart
28. 28.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a mirror (c) a balloon (d) a comb
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) True (b) False
30. 30.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
31. 31.🛟 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
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
33. 33.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) an acid (c) a base
34. 34.🔍 Which is the odd one out? (a) baking soda water (b) salt water (c) detergent water (d) soap solution
35. 35.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) carbon dioxide (c) hydrogen (d) oxygen
36. 36.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
37. 37.🧺 Which of these is needed for the fizzy balloon? (a) a tray for spills (b) a mirror (c) a magnet (d) a comb
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a seed (c) baking soda (d) an empty bottle
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon
40. 40.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the gas froze (c) the balloon got cold (d) the bottle got tired

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