Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 297 · 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 bottle got tired (c) an ingredient ran out (d) the gas froze
2. 2.🔍 Which is the odd one out? (a) baking soda water (b) curd (c) detergent water (d) soap solution
3. 3.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) False (b) True
5. 5.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
6. 6.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
7. 7.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it shrinks (c) it grows bigger (d) it turns blue
8. 8.🫧 Is salt water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
9. 9.True or false: vinegar is an acid. (a) False (b) True
10. 10.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a magnet (c) an empty bottle (d) a balloon
11. 11.🫧 Which of these is a base? (a) tamarind water (b) detergent water (c) salt water (d) vinegar
12. 12.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
13. 13.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) nothing at all (c) it turns to ice (d) it glows in the dark
14. 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a balloon (c) an empty bottle (d) a funnel or spoon
15. 15.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) shake it near your face (c) seal it in a glass jar (d) put it in your mouth
16. 16.🫧 Is plain water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
17. 17.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a magnet (c) a tray for spills (d) a comb
18. 18.⚖️ 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
19. 19.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) salt water (d) detergent water
20. 20.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
21. 21.🧺 Which of these is not needed for the fizzy balloon? (a) a mirror (b) baking soda (c) a funnel or spoon (d) a balloon
22. 22.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
23. 23.🔍 Which is the odd one out? (a) lemon juice (b) tamarind water (c) orange juice (d) salt water
24. 24.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
25. 25.⚖️ 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 kind of balloon (c) the same bottle (d) spoons of baking soda
26. 26.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
27. 27.⚖️ 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) spoons of baking soda (d) the kind of balloon
28. 28.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) soap solution (d) sugar water
29. 29.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
30. 30.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
31. 31.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) sugar (c) a comb (d) a mirror
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we keep it the same (c) we change it
33. 33.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rinse with clean water (c) rub it hard (d) ignore it
34. 34.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) the balloon bursts (c) very little fizzing (d) a huge eruption
35. 35.True or false: soap solution is a base. (a) True (b) False
36. 36.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
37. 37.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
38. 38.🫧 Which of these is neutral? (a) orange juice (b) baking soda water (c) salt water (d) soap solution
39. 39.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
40. 40.🫧 Which of these is neutral? (a) curd (b) detergent water (c) plain water (d) orange juice

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