Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 371 · 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 mirror (b) vinegar (c) a funnel or spoon (d) a tray for spills
2. 2.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
3. 3.⚖️ 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) spoons of baking soda (c) the kind of balloon (d) the amount of vinegar
4. 4.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) an empty bottle (c) a battery cell (d) sugar
5. 5.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
6. 6.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a mirror (c) a magnet (d) a tray for spills
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
8. 8.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) it is only melting (c) no, nothing changes (d) it is only dissolving
9. 9.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) shake it near your face (d) keep it away from eyes
10. 10.True or false: vinegar is an acid. (a) False (b) True
11. 11.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) add baking soda (c) rub it hard (d) ignore it
12. 12.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) plain water (d) curd
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) baking soda (c) an empty bottle (d) a funnel or spoon
14. 14.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a battery cell (c) a funnel or spoon (d) vinegar
16. 16.⚖️ 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 measure it (c) we keep it the same
17. 17.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
18. 18.🔍 Which is the odd one out? (a) lemon juice (b) curd (c) tamarind water (d) sugar water
19. 19.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) sugar (c) a funnel or spoon (d) a magnet
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a seed (c) a tray for spills (d) vinegar
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we change it (c) we measure it
23. 23.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a seed (c) a balloon (d) a comb
24. 24.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
25. 25.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) the bottle shrinks (d) outside air gets in
26. 26.🔮 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
27. 27.🔍 Which is the odd one out? (a) soap solution (b) plain water (c) baking soda water (d) detergent water
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) True (b) False
29. 29.⚖️ 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
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) False (b) True
31. 31.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True
32. 32.🫧 Is plain water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) the amount of vinegar (c) spoons of baking soda (d) the kind of balloon
34. 34.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
35. 35.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
36. 36.🫧 Is salt water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
37. 37.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) carbon dioxide (c) helium (d) oxygen
38. 38.True or false: orange juice is a base. (a) False (b) True
39. 39.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) very little fizzing (c) the balloon bursts (d) it turns to honey
40. 40.⚖️ 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 same bottle (c) spoons of baking soda

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