Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 484 · 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.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) a funnel or spoon (c) vinegar (d) a tray for spills
2. 2.True or false: orange juice is an acid. (a) False (b) True
3. 3.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) shake it near your face (d) put it in your mouth
4. 4.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) gas is made inside (d) outside air gets in
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we measure it (c) we keep it the same
6. 6.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) rinse with clean water (d) ignore it
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) baking soda (c) an empty bottle (d) a mirror
8. 8.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a battery cell (c) a tray for spills (d) a mirror
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the same bottle (c) the amount of vinegar (d) size of the balloon
10. 10.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) no, nothing changes (c) it is only melting (d) yes, a new gas forms
11. 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) True (b) False
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) baking soda (c) vinegar (d) a funnel or spoon
14. 14.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) helium (c) hydrogen (d) oxygen
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
16. 16.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) orange juice (d) detergent water
18. 18.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
19. 19.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) very little fizzing (c) it turns to honey (d) the balloon bursts
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.⚖️ 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) the kind of balloon (d) spoons of baking soda
22. 22.🫧 Which of these is neutral? (a) lemon juice (b) plain water (c) orange juice (d) baking soda water
23. 23.🫧 Which of these is a base? (a) curd (b) tamarind water (c) orange juice (d) soap solution
24. 24.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
25. 25.🫧 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
26. 26.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
27. 27.🫧 Which of these is an acid? (a) lemon juice (b) baking soda water (c) soap solution (d) plain water
28. 28.🫧 Which of these is an acid? (a) vinegar (b) plain water (c) soap solution (d) baking soda water
29. 29.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it grows bigger (c) it turns blue (d) there is no change
30. 30.🫧 Which of these is neutral? (a) salt water (b) orange juice (c) detergent water (d) curd
31. 31.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) an empty bottle (c) a comb (d) a balloon
32. 32.🫧 Which of these is an acid? (a) detergent water (b) soap solution (c) baking soda water (d) orange juice
33. 33.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) baking soda (c) vinegar (d) a mirror
34. 34.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the kind of balloon
36. 36.True or false: a mirror is needed for the fizzy balloon. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) sugar water (b) tamarind water (c) salt water (d) plain water
38. 38.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) curd (d) detergent water
39. 39.🔮 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
40. 40.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a funnel or spoon (c) baking soda (d) a magnet

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