Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 361 · 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.True or false: plain water is a base. (a) False (b) True
2. 2.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) a huge eruption (c) very little fizzing (d) it turns to honey
3. 3.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) soap solution (d) lemon juice
4. 4.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a tray for spills (c) a battery cell (d) vinegar
5. 5.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) add baking soda (c) rinse with clean water (d) rub it hard
6. 6.⚖️ 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) the same bottle (c) size of the balloon (d) spoons of baking soda
7. 7.⚖️ 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
8. 8.🫧 Which of these is a base? (a) baking soda water (b) lemon juice (c) vinegar (d) orange juice
9. 9.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it turns to ice (c) lots of fizzy bubbles (d) it glows in the dark
10. 10.⚖️ 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
11. 11.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
12. 12.⚖️ 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 keep it the same (c) we change it
13. 13.⚖️ 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) False (b) True
14. 14.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
15. 15.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) hydrogen (c) helium (d) carbon dioxide
16. 16.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) the bottle shrinks (d) gas is made inside
17. 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) False (b) True
18. 18.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
19. 19.🫧 Which of these is an acid? (a) curd (b) plain water (c) baking soda water (d) salt water
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) size of the balloon (c) spoons of baking soda (d) the kind of balloon
21. 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) an empty bottle (c) a balloon (d) a comb
22. 22.True or false: plain water is neutral. (a) True (b) False
23. 23.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) sugar (c) baking soda (d) a seed
24. 24.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) yes, a new gas forms (c) it is only melting (d) it is only dissolving
25. 25.⚖️ 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
26. 26.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) sugar (c) an empty bottle (d) a magnet
27. 27.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) neutral (c) a base
28. 28.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
29. 29.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
30. 30.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they freeze (c) they become magnets (d) they float apart
31. 31.⚖️ 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 kind of balloon
32. 32.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
33. 33.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) detergent water (b) orange juice (c) soap solution (d) baking soda water
35. 35.🔍 Which is the odd one out? (a) soap solution (b) orange juice (c) vinegar (d) lemon juice
36. 36.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the balloon got cold (c) the gas froze (d) the bottle got tired
37. 37.🫧 Which of these is an acid? (a) salt water (b) soap solution (c) vinegar (d) baking soda water
38. 38.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) keep it away from eyes (d) seal it in a glass jar
39. 39.🫧 Which of these is neutral? (a) lemon juice (b) orange juice (c) salt water (d) baking soda water
40. 40.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) baking soda (c) an empty bottle (d) a mirror

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