Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 69 · 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: soap solution is an acid. (a) True (b) False
2. 2.⚖️ 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
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) a funnel or spoon (c) a balloon (d) vinegar
4. 4.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) hydrogen (c) carbon dioxide (d) oxygen
5. 5.🔍 Which is the odd one out? (a) plain water (b) baking soda water (c) soap solution (d) detergent water
6. 6.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the gas froze (c) the bottle got tired (d) the balloon got cold
7. 7.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
8. 8.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it shrinks (c) there is no change (d) it turns blue
9. 9.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) a huge eruption (c) very little fizzing (d) the balloon bursts
10. 10.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a comb (c) sugar (d) a battery cell
11. 11.🔍 Which is the odd one out? (a) detergent water (b) lemon juice (c) vinegar (d) curd
12. 12.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) vinegar (c) a seed (d) a funnel or spoon
13. 13.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) it is only dissolving (c) yes, a new gas forms (d) no, nothing changes
14. 14.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) outside air gets in (d) the bottle shrinks
15. 15.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
16. 16.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) shake it near your face (c) keep it away from eyes (d) put it in your mouth
17. 17.🔍 Which is the odd one out? (a) tamarind water (b) salt water (c) lemon juice (d) orange juice
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) vinegar (c) a funnel or spoon (d) a battery cell
19. 19.🔍 Which is the odd one out? (a) vinegar (b) sugar water (c) lemon juice (d) curd
20. 20.True or false: baking soda water is a base. (a) True (b) False
21. 21.True or false: a magnet is needed for the fizzy balloon. (a) False (b) True
22. 22.🫧 Which of these is a base? (a) baking soda water (b) orange juice (c) plain water (d) vinegar
23. 23.📘 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
24. 24.⚖️ 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 keep it the same (c) we measure it
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
26. 26.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
27. 27.🫧 Which of these is neutral? (a) lemon juice (b) sugar water (c) tamarind water (d) vinegar
28. 28.True or false: lemon juice is a base. (a) True (b) False
29. 29.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) baking soda (c) a balloon (d) sugar
31. 31.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
32. 32.⚖️ 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
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) the kind of balloon (c) spoons of baking soda (d) size of the balloon
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 the one thing we change? (a) the same bottle (b) the kind of balloon (c) size of the balloon (d) spoons of baking soda
36. 36.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
37. 37.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
38. 38.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) neutral (c) an acid
39. 39.🔍 Which is the odd one out? (a) baking soda water (b) lemon juice (c) curd (d) vinegar
40. 40.⚖️ 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

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