Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 455 · 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.📘 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
2. 2.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) ignore it (c) rub it hard (d) rinse with clean water
3. 3.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) sugar (c) baking soda (d) a comb
4. 4.🛟 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
5. 5.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the gas froze (c) the balloon got cold (d) an ingredient ran out
6. 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a funnel or spoon (c) a mirror (d) vinegar
7. 7.⚖️ 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
8. 8.🎈 Why does the balloon blow up? (a) gas is made inside (b) outside air gets in (c) vinegar is hot (d) the bottle shrinks
9. 9.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it turns to ice (c) it glows in the dark (d) lots of fizzy bubbles
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) spoons of baking soda (c) the kind of balloon (d) size of the balloon
11. 11.🫧 Which of these is an acid? (a) plain water (b) orange juice (c) soap solution (d) salt water
12. 12.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
13. 13.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
14. 14.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
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) spoons of baking soda (c) the kind of balloon (d) the same bottle
16. 16.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
17. 17.🧺 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 battery cell (d) a funnel or spoon
18. 18.🔍 Which is the odd one out? (a) plain water (b) orange juice (c) salt water (d) sugar water
19. 19.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
20. 20.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
21. 21.🔍 Which is the odd one out? (a) soap solution (b) vinegar (c) orange juice (d) lemon juice
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) True (b) False
23. 23.True or false: sugar water is a base. (a) True (b) False
24. 24.🫧 Which of these is an acid? (a) vinegar (b) detergent water (c) plain water (d) sugar water
25. 25.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
26. 26.⚖️ 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
27. 27.⚖️ 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 keep it the same (c) we measure it
28. 28.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) a tray for spills (c) a balloon (d) baking soda
29. 29.🔍 Which is the odd one out? (a) plain water (b) salt water (c) curd (d) sugar water
30. 30.🫧 Which of these is neutral? (a) tamarind water (b) lemon juice (c) plain water (d) soap solution
31. 31.⚖️ 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
32. 32.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a balloon (c) vinegar (d) a comb
33. 33.⚖️ 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
34. 34.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they react (d) they float apart
35. 35.🔍 Which is the odd one out? (a) curd (b) orange juice (c) vinegar (d) plain water
36. 36.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
37. 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) baking soda (c) a funnel or spoon (d) a balloon
38. 38.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
39. 39.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
40. 40.⚖️ 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

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