Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 188 · 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: vinegar is an acid. (a) False (b) True
2. 2.True or false: curd is an acid. (a) True (b) False
3. 3.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) a base (c) neutral
4. 4.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
5. 5.🎈 Why does the balloon blow up? (a) vinegar is hot (b) the bottle shrinks (c) gas is made inside (d) outside air gets in
6. 6.🔍 Which is the odd one out? (a) tamarind water (b) lemon juice (c) sugar water (d) vinegar
7. 7.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True
8. 8.⚖️ 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 kind of balloon (c) the amount of vinegar (d) spoons of baking soda
9. 9.⚖️ 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
10. 10.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
11. 11.⚖️ 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 same bottle
12. 12.⚖️ 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
13. 13.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
14. 14.⚖️ 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
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
16. 16.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) baking soda (c) a mirror (d) a balloon
17. 17.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) seal it in a glass jar (d) shake it near your face
18. 18.🔮 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
19. 19.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
20. 20.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) hydrogen (c) carbon dioxide (d) oxygen
21. 21.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they float apart (c) they freeze (d) they become magnets
22. 22.⚖️ 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
23. 23.🫧 Which of these is an acid? (a) orange juice (b) detergent water (c) soap solution (d) salt water
24. 24.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
25. 25.🧺 Which of these is needed for the fizzy balloon? (a) a balloon (b) a seed (c) a battery cell (d) sugar
26. 26.🫧 Which of these is an acid? (a) baking soda water (b) soap solution (c) salt water (d) curd
27. 27.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) baking soda (c) sugar (d) a comb
28. 28.True or false: lemon juice is neutral. (a) True (b) False
29. 29.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the bottle got tired (c) the gas froze (d) an ingredient ran out
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) soap solution (d) curd
32. 32.⚖️ 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 keep it the same (c) we change it
33. 33.🔍 Which is the odd one out? (a) orange juice (b) vinegar (c) salt water (d) curd
34. 34.True or false: soap solution is a base. (a) True (b) False
35. 35.⚖️ 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
36. 36.⚖️ 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
37. 37.🫧 Which of these is neutral? (a) vinegar (b) tamarind water (c) salt water (d) soap solution
38. 38.⚖️ 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) the kind of balloon (d) size of the balloon
39. 39.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
40. 40.🫧 Which of these is neutral? (a) baking soda water (b) plain water (c) curd (d) vinegar

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