Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 681 · 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? What do we do with “size of the balloon”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.⚖️ 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
3. 3.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
4. 4.🫧 Which of these is neutral? (a) curd (b) plain water (c) baking soda water (d) soap solution
5. 5.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) yes, a new gas forms (c) it is only melting (d) it is only dissolving
6. 6.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) ignore it (c) rinse with clean water (d) rub it hard
7. 7.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
8. 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) baking soda (d) sugar
9. 9.🔍 Which is the odd one out? (a) lemon juice (b) vinegar (c) curd (d) baking soda water
10. 10.⚖️ 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
11. 11.⚖️ 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) spoons of baking soda (d) the amount of vinegar
12. 12.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
13. 13.True or false: curd is an acid. (a) True (b) False
14. 14.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
15. 15.⚖️ 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) the kind of balloon (d) spoons of baking soda
16. 16.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a tray for spills (c) a mirror (d) an empty bottle
17. 17.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) seal it in a glass jar (d) keep it away from eyes
18. 18.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) the bottle got tired (d) an ingredient ran out
19. 19.🫧 Which of these is neutral? (a) lemon juice (b) vinegar (c) curd (d) salt water
20. 20.True or false: a funnel or spoon is needed for the fizzy balloon. (a) True (b) False
21. 21.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it grows bigger (d) it turns blue
22. 22.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
23. 23.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a seed (c) a comb (d) vinegar
24. 24.🔍 Which is the odd one out? (a) curd (b) orange juice (c) plain water (d) vinegar
25. 25.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we measure it (c) we change it
27. 27.True or false: orange juice is a base. (a) False (b) True
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we measure it (c) we keep it the same
29. 29.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) a huge eruption (d) it turns to honey
30. 30.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) baking soda (c) a battery cell (d) a seed
31. 31.🫧 Which of these is an acid? (a) salt water (b) detergent water (c) baking soda water (d) tamarind water
32. 32.⚖️ 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
33. 33.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
34. 34.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
35. 35.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) salt water (b) orange juice (c) vinegar (d) curd
37. 37.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
38. 38.🫧 Which of these is an acid? (a) detergent water (b) orange juice (c) plain water (d) salt water
39. 39.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
40. 40.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) gas is made inside (d) the bottle shrinks

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