Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 624 · 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) sugar (b) a balloon (c) vinegar (d) baking soda
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) False (b) True
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) a battery cell (d) an empty bottle
4. 4.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) a huge eruption (c) the balloon bursts (d) it turns to honey
5. 5.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) sugar (c) baking soda (d) a funnel or spoon
6. 6.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) keep it away from eyes (c) put it in your mouth (d) seal it in a glass jar
7. 7.⚖️ 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 same bottle (c) spoons of baking soda (d) the kind of balloon
8. 8.🫧 Which of these is a base? (a) lemon juice (b) salt water (c) plain water (d) baking soda water
9. 9.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) no, nothing changes (c) yes, a new gas forms (d) it is only melting
10. 10.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the gas froze (c) the bottle got tired (d) an ingredient ran out
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) an empty bottle (c) a seed (d) a tray for spills
12. 12.🎈 Why does the balloon blow up? (a) outside air gets in (b) the bottle shrinks (c) gas is made inside (d) vinegar is hot
13. 13.🔍 Which is the odd one out? (a) soap solution (b) sugar water (c) baking soda water (d) detergent water
14. 14.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
15. 15.🫧 Which of these is an acid? (a) lemon juice (b) detergent water (c) salt water (d) soap solution
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
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.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) hydrogen (c) carbon dioxide (d) oxygen
19. 19.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
20. 20.⚖️ 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
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the same bottle
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a comb (c) baking soda (d) a tray for spills
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) True (b) False
24. 24.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) add baking soda (d) rinse with clean water
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a magnet (c) a balloon (d) vinegar
27. 27.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
28. 28.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
29. 29.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it glows in the dark (c) lots of fizzy bubbles (d) it turns to ice
30. 30.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
31. 31.🫧 Which of these is an acid? (a) soap solution (b) salt water (c) baking soda water (d) vinegar
32. 32.True or false: sugar is needed for the fizzy balloon. (a) False (b) True
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) the kind of balloon (c) spoons of baking soda
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) vinegar (c) a mirror (d) a balloon
35. 35.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they float apart (d) they react
36. 36.🫧 Which of these is an acid? (a) curd (b) sugar water (c) detergent water (d) salt water
37. 37.True or false: sugar water is neutral. (a) False (b) True
38. 38.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
39. 39.🧺 Which of these is not needed for the fizzy balloon? (a) a magnet (b) an empty bottle (c) baking soda (d) a funnel or spoon
40. 40.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True

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