Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 767 · 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 the one thing we change? (a) the same bottle (b) spoons of baking soda (c) the amount of vinegar (d) size of the balloon
2. 2.🫧 Which of these is an acid? (a) sugar water (b) salt water (c) curd (d) baking soda water
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
4. 4.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) a base (c) neutral
5. 5.True or false: salt water is an acid. (a) False (b) True
6. 6.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) it turns to honey (d) very little fizzing
7. 7.🔍 Which is the odd one out? (a) salt water (b) tamarind water (c) vinegar (d) orange juice
8. 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we keep it the same (b) we measure it (c) we change it
9. 9.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) an empty bottle (c) a battery cell (d) a seed
10. 10.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) keep it away from eyes (d) put it in your mouth
11. 11.True or false: detergent water is a base. (a) True (b) False
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.True or false: salt water is neutral. (a) True (b) False
14. 14.⚖️ 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
15. 15.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) an ingredient ran out (c) the gas froze (d) the balloon got cold
16. 16.⚖️ 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 measure it (c) we change it
17. 17.🔍 Which is the odd one out? (a) lemon juice (b) baking soda water (c) soap solution (d) detergent water
18. 18.⚖️ 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
19. 19.True or false: orange juice is an acid. (a) True (b) False
20. 20.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
21. 21.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
22. 22.True or false: detergent water is an acid. (a) False (b) True
23. 23.⚖️ 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 change it (c) we keep it the same
24. 24.True or false: curd is an acid. (a) True (b) False
25. 25.🫧 Which of these is a base? (a) vinegar (b) tamarind water (c) lemon juice (d) soap solution
26. 26.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) add baking soda (d) rinse with clean water
27. 27.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
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.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) size of the balloon (c) spoons of baking soda (d) the amount of vinegar
31. 31.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) it is only dissolving (c) it is only melting (d) no, nothing changes
32. 32.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
33. 33.⚖️ 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
34. 34.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a seed (c) a balloon (d) a mirror
35. 35.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) gas is made inside (c) outside air gets in (d) vinegar is hot
36. 36.True or false: soap solution is an acid. (a) True (b) False
37. 37.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
38. 38.⚖️ 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
39. 39.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) curd
40. 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) True (b) False

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