Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 807 · 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.🧺 Which of these is not needed for the fizzy balloon? (a) a battery cell (b) an empty bottle (c) a funnel or spoon (d) baking soda
2. 2.True or false: vinegar is an acid. (a) True (b) False
3. 3.⚖️ 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
4. 4.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) put it in your mouth (c) shake it near your face (d) keep it away from eyes
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon (d) the same bottle
6. 6.🫧 Which of these is a base? (a) salt water (b) lemon juice (c) orange juice (d) detergent water
7. 7.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
8. 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) baking soda (c) a funnel or spoon (d) vinegar
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) sugar (c) a tray for spills (d) vinegar
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
11. 11.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) rub it hard (c) add baking soda (d) ignore it
12. 12.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) an ingredient ran out (c) the balloon got cold (d) the gas froze
13. 13.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) helium (c) oxygen (d) hydrogen
14. 14.⚖️ 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
15. 15.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it turns blue (d) it grows bigger
16. 16.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
17. 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) the balloon bursts (c) a huge eruption (d) it turns to honey
19. 19.🔍 Which is the odd one out? (a) tamarind water (b) curd (c) salt water (d) orange juice
20. 20.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
21. 21.🫧 Which of these is a base? (a) orange juice (b) plain water (c) tamarind water (d) baking soda water
22. 22.⚖️ 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
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we keep it the same (c) we measure it
24. 24.True or false: a mirror is needed for the fizzy balloon. (a) False (b) True
25. 25.True or false: tamarind water is a base. (a) False (b) True
26. 26.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) nothing at all (c) lots of fizzy bubbles (d) it glows in the dark
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) False (b) True
28. 28.True or false: sugar water is neutral. (a) False (b) True
29. 29.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) outside air gets in (d) gas is made inside
30. 30.🔍 Which is the odd one out? (a) plain water (b) tamarind water (c) lemon juice (d) curd
31. 31.True or false: lemon juice is an acid. (a) False (b) True
32. 32.⚖️ 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
33. 33.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
34. 34.True or false: orange juice is neutral. (a) False (b) True
35. 35.🫧 Which of these is an acid? (a) baking soda water (b) soap solution (c) salt water (d) curd
36. 36.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
37. 37.🔍 Which is the odd one out? (a) baking soda water (b) tamarind water (c) soap solution (d) detergent water
38. 38.🔍 Which is the odd one out? (a) soap solution (b) sugar water (c) salt water (d) plain water
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we change it (c) we measure it
40. 40.🔍 Which is the odd one out? (a) orange juice (b) salt water (c) plain water (d) sugar water

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