Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 288 · 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? Which of these is what we measure? (a) the kind of balloon (b) size of the balloon (c) the amount of vinegar (d) the same bottle
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) the kind of balloon (c) spoons of baking soda
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) an empty bottle
4. 4.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a seed (c) a tray for spills (d) a comb
5. 5.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) the balloon bursts (d) very little fizzing
6. 6.🛟 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
7. 7.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a comb (c) vinegar (d) a seed
8. 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) False (b) True
9. 9.⚖️ 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
10. 10.🫧 Which of these is an acid? (a) salt water (b) baking soda water (c) sugar water (d) tamarind water
11. 11.True or false: orange juice is an acid. (a) False (b) True
12. 12.🫧 Which of these is an acid? (a) vinegar (b) soap solution (c) detergent water (d) sugar water
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) False (b) True
14. 14.🫧 Which of these is a base? (a) vinegar (b) plain water (c) soap solution (d) tamarind water
15. 15.True or false: salt water is a base. (a) True (b) False
16. 16.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) oxygen (c) helium (d) carbon dioxide
17. 17.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) lemon juice
18. 18.⚖️ 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
19. 19.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) the bottle shrinks (d) gas is made inside
20. 20.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they become magnets (c) they react (d) they freeze
21. 21.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a mirror (c) a balloon (d) a seed
22. 22.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
23. 23.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
24. 24.⚖️ 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) spoons of baking soda (c) the kind of balloon (d) the same bottle
25. 25.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
26. 26.🔍 Which is the odd one out? (a) vinegar (b) tamarind water (c) lemon juice (d) baking soda water
27. 27.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) an empty bottle (c) a seed (d) a battery cell
28. 28.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) sugar water (d) soap solution
29. 29.🫧 Which of these is an acid? (a) baking soda water (b) plain water (c) orange juice (d) soap solution
30. 30.True or false: plain water is an acid. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) soap solution (d) vinegar
32. 32.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) an empty bottle (c) vinegar (d) a balloon
33. 33.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
34. 34.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
35. 35.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) an ingredient ran out (c) the balloon got cold (d) the gas froze
36. 36.🔮 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
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
38. 38.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) put it in your mouth (d) shake it near your face
39. 39.True or false: soap solution is a base. (a) False (b) True
40. 40.True or false: lemon juice is a base. (a) True (b) False

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