Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 498 · 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: a mirror is not needed for the fizzy balloon. (a) True (b) False
2. 2.🫧 Which of these is an acid? (a) soap solution (b) salt water (c) detergent water (d) lemon juice
3. 3.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only dissolving (c) yes, a new gas forms (d) it is only melting
4. 4.🛟 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
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.🫧 Is curd an acid, a base or neutral? (a) an acid (b) neutral (c) a base
7. 7.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
8. 8.🫧 Which of these is neutral? (a) tamarind water (b) vinegar (c) soap solution (d) plain water
9. 9.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a tray for spills (c) a funnel or spoon (d) a comb
10. 10.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it turns blue (c) there is no change (d) it grows bigger
11. 11.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they float apart (c) they react (d) they become magnets
12. 12.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a tray for spills (c) a mirror (d) vinegar
13. 13.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
14. 14.🧺 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) a seed
15. 15.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a mirror (c) an empty bottle (d) vinegar
16. 16.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
17. 17.🧺 Which of these is not needed for the fizzy balloon? (a) sugar (b) baking soda (c) an empty bottle (d) vinegar
18. 18.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
20. 20.⚖️ 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
21. 21.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
22. 22.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
23. 23.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
24. 24.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the balloon got cold (c) the gas froze (d) an ingredient ran out
25. 25.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
26. 26.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True
27. 27.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
28. 28.⚖️ 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
29. 29.⚖️ 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) True (b) False
30. 30.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
31. 31.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
32. 32.⚖️ 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
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) size of the balloon (c) the same bottle (d) spoons of baking soda
34. 34.🔍 Which is the odd one out? (a) lemon juice (b) vinegar (c) curd (d) salt water
35. 35.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) keep it away from eyes (d) shake it near your face
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we measure it (c) we change it
37. 37.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) outside air gets in (d) gas is made inside
38. 38.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
39. 39.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) vinegar (c) a funnel or spoon (d) a magnet
40. 40.🫧 Which of these is neutral? (a) vinegar (b) curd (c) sugar water (d) baking soda water

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