Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 970 · 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.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the gas froze (c) the bottle got tired (d) an ingredient ran out
2. 2.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
3. 3.True or false: vinegar is not needed for the fizzy balloon. (a) True (b) False
4. 4.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they float apart (c) they become magnets (d) they react
5. 5.True or false: curd is a base. (a) False (b) True
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) the same bottle (c) spoons of baking soda (d) size of the balloon
7. 7.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) an empty bottle (c) baking soda (d) a tray for spills
8. 8.🫧 Which of these is an acid? (a) sugar water (b) baking soda water (c) detergent water (d) orange juice
9. 9.🔍 Which is the odd one out? (a) tamarind water (b) vinegar (c) plain water (d) curd
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a seed (c) an empty bottle (d) a funnel or spoon
11. 11.True or false: orange juice is an acid. (a) True (b) False
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the kind of balloon (b) the amount of vinegar (c) spoons of baking soda (d) the same bottle
13. 13.True or false: a battery cell is not needed for the fizzy balloon. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) salt water (b) plain water (c) sugar water (d) lemon juice
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a battery cell (c) vinegar (d) baking soda
16. 16.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a battery cell (c) vinegar (d) a comb
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) baking soda (c) a tray for spills (d) a funnel or spoon
18. 18.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
19. 19.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) an acid (c) a base
20. 20.🔍 Which is the odd one out? (a) soap solution (b) lemon juice (c) vinegar (d) tamarind water
21. 21.📘 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
22. 22.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) add baking soda (d) rinse with clean water
23. 23.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) shake it near your face (c) keep it away from eyes (d) put it in your mouth
24. 24.🫧 Which of these is neutral? (a) soap solution (b) vinegar (c) salt water (d) orange juice
25. 25.🫧 Is curd an acid, a base or neutral? (a) an acid (b) neutral (c) a base
26. 26.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) nothing at all (c) lots of fizzy bubbles (d) it turns to ice
27. 27.🫧 Which of these is an acid? (a) sugar water (b) vinegar (c) detergent water (d) salt water
28. 28.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a mirror (c) a balloon (d) a funnel or spoon
29. 29.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) an empty bottle (c) baking soda (d) a battery cell
30. 30.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a balloon (c) an empty bottle (d) a comb
31. 31.⚖️ 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
32. 32.⚖️ 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
33. 33.🫧 Which of these is neutral? (a) tamarind water (b) lemon juice (c) orange juice (d) sugar water
34. 34.True or false: vinegar is a base. (a) True (b) False
35. 35.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a tray for spills (c) a comb (d) a battery cell
36. 36.True or false: tamarind water is an acid. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) detergent water (d) salt water
38. 38.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the same bottle (b) spoons of baking soda (c) size of the balloon
40. 40.🫧 Which of these is a base? (a) baking soda water (b) curd (c) lemon juice (d) vinegar

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