Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 266 · 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 vinegar an acid, a base or neutral? (a) an acid (b) a base (c) neutral
2. 2.🫧 Which of these is an acid? (a) detergent water (b) soap solution (c) baking soda water (d) curd
3. 3.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a funnel or spoon (c) a seed (d) a battery cell
4. 4.🎈 Why does the balloon blow up? (a) vinegar is hot (b) the bottle shrinks (c) outside air gets in (d) gas is made inside
5. 5.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
6. 6.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
7. 7.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) it turns to honey (d) very little fizzing
8. 8.🔍 Which is the odd one out? (a) sugar water (b) baking soda water (c) salt water (d) plain water
9. 9.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) False (b) True
10. 10.⚖️ 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
11. 11.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) orange juice (b) vinegar (c) tamarind water (d) sugar water
13. 13.⚖️ 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
14. 14.True or false: soap solution is neutral. (a) False (b) True
15. 15.🔮 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
16. 16.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a seed (c) a funnel or spoon (d) a balloon
17. 17.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) add baking soda (c) rub it hard (d) rinse with clean water
18. 18.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they freeze (c) they react (d) they float apart
19. 19.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon
21. 21.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
22. 22.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) carbon dioxide (c) helium (d) hydrogen
23. 23.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) salt water (b) baking soda water (c) soap solution (d) detergent water
25. 25.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) vinegar (c) a seed (d) a tray for spills
26. 26.🫧 Which of these is neutral? (a) curd (b) vinegar (c) detergent water (d) sugar water
27. 27.⚖️ 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) False (b) True
28. 28.🛟 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
29. 29.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) nothing at all (c) it turns to ice (d) lots of fizzy bubbles
30. 30.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
31. 31.🫧 Which of these is neutral? (a) plain water (b) soap solution (c) baking soda water (d) vinegar
32. 32.True or false: tamarind water is neutral. (a) True (b) False
33. 33.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
34. 34.True or false: tamarind water is a base. (a) False (b) True
35. 35.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
36. 36.🔍 Which is the odd one out? (a) plain water (b) salt water (c) detergent water (d) sugar water
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.🫧 Which of these is an acid? (a) sugar water (b) plain water (c) vinegar (d) baking soda water
39. 39.True or false: curd is an acid. (a) False (b) True
40. 40.⚖️ 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

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