Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 284 · 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.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) a huge eruption (c) very little fizzing (d) it turns to honey
2. 2.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
4. 4.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the balloon got cold (c) the bottle got tired (d) the gas froze
5. 5.⚖️ 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
6. 6.🫧 Which of these is an acid? (a) plain water (b) detergent water (c) salt water (d) vinegar
7. 7.📘 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
8. 8.⚖️ 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 keep it the same (c) we measure it
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) spoons of baking soda (c) the same bottle (d) the amount of vinegar
10. 10.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a balloon (c) a comb (d) an empty bottle
12. 12.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it shrinks (c) it turns blue (d) there is no change
13. 13.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) oxygen (c) carbon dioxide (d) helium
14. 14.🔍 Which is the odd one out? (a) vinegar (b) curd (c) detergent water (d) lemon juice
15. 15.🛟 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
16. 16.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) lots of fizzy bubbles (c) nothing at all (d) it turns to ice
17. 17.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) tamarind water (d) soap solution
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) a tray for spills (c) baking soda (d) vinegar
19. 19.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) shake it near your face (d) seal it in a glass jar
20. 20.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
21. 21.🫧 Is plain water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
22. 22.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a mirror (c) a funnel or spoon (d) a seed
23. 23.⚖️ 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
24. 24.🫧 Which of these is neutral? (a) curd (b) plain water (c) baking soda water (d) lemon juice
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the same bottle (b) the amount of vinegar (c) size of the balloon (d) spoons of baking soda
26. 26.True or false: soap solution is an acid. (a) True (b) False
27. 27.True or false: baking soda water is an acid. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) orange juice (b) salt water (c) lemon juice (d) tamarind water
29. 29.True or false: orange juice is an acid. (a) True (b) False
30. 30.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
31. 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) a comb (d) baking soda
32. 32.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) baking soda (c) a tray for spills (d) a mirror
33. 33.True or false: salt water is an acid. (a) False (b) True
34. 34.🫧 Which of these is a base? (a) tamarind water (b) sugar water (c) orange juice (d) detergent water
35. 35.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
36. 36.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a comb (c) a mirror (d) vinegar
37. 37.🔍 Which is the odd one out? (a) vinegar (b) lemon juice (c) soap solution (d) curd
38. 38.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a funnel or spoon (c) sugar (d) vinegar
39. 39.🫧 Which of these is a base? (a) tamarind water (b) plain water (c) curd (d) baking soda water
40. 40.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) plain water (d) baking soda water

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