Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 858 · 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: tamarind water is a base. (a) False (b) True
2. 2.⚖️ 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
3. 3.🔍 Which is the odd one out? (a) orange juice (b) sugar water (c) vinegar (d) tamarind water
4. 4.True or false: soap solution is a base. (a) True (b) False
5. 5.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) the balloon bursts (d) very little fizzing
6. 6.🔍 Which is the odd one out? (a) vinegar (b) detergent water (c) soap solution (d) baking soda water
7. 7.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
8. 8.⚖️ 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 keep it the same (c) we measure it
9. 9.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
10. 10.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a mirror (c) a tray for spills (d) baking soda
12. 12.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) an ingredient ran out (c) the bottle got tired (d) the balloon got cold
13. 13.True or false: curd is an acid. (a) False (b) True
14. 14.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) there is no change (d) it shrinks
15. 15.⚖️ 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) spoons of baking soda (d) the kind of balloon
16. 16.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only melting (c) it is only dissolving (d) yes, a new gas forms
17. 17.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
18. 18.🫧 Which of these is a base? (a) tamarind water (b) salt water (c) plain water (d) baking soda water
19. 19.⚖️ 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
20. 20.True or false: soap solution is an acid. (a) True (b) False
21. 21.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
22. 22.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) salt water (d) detergent water
23. 23.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
24. 24.True or false: soap solution is neutral. (a) True (b) False
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a seed (c) vinegar (d) baking soda
26. 26.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) lots of fizzy bubbles (c) it turns to ice (d) it glows in the dark
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda (d) the kind of balloon
28. 28.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
29. 29.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) an acid (c) a base
30. 30.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) helium (c) carbon dioxide (d) hydrogen
31. 31.True or false: detergent water is an acid. (a) True (b) False
32. 32.🎈 Why does the balloon blow up? (a) outside air gets in (b) the bottle shrinks (c) gas is made inside (d) vinegar is hot
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we change it (c) we measure it
34. 34.🫧 Which of these is an acid? (a) soap solution (b) plain water (c) salt water (d) orange juice
35. 35.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) vinegar (c) an empty bottle (d) sugar
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) False (b) True
37. 37.🫧 Which of these is neutral? (a) vinegar (b) plain water (c) lemon juice (d) tamarind water
38. 38.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
39. 39.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) put it in your mouth (d) shake it near your face
40. 40.⚖️ 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

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