Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 416 · 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 neutral? (a) sugar water (b) tamarind water (c) vinegar (d) detergent water
2. 2.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
3. 3.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the kind of balloon (c) size of the balloon
5. 5.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) lots of fizzy bubbles (c) nothing at all (d) it glows in the dark
6. 6.🧺 Which of these is not needed for the fizzy balloon? (a) a mirror (b) baking soda (c) vinegar (d) a balloon
7. 7.⚖️ 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
8. 8.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
9. 9.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a balloon (c) a magnet (d) vinegar
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) an empty bottle (d) sugar
11. 11.🔍 Which is the odd one out? (a) salt water (b) curd (c) plain water (d) sugar water
12. 12.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
14. 14.⚖️ 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
15. 15.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) it turns to honey (c) the balloon bursts (d) a huge eruption
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) curd (b) baking soda water (c) orange juice (d) vinegar
18. 18.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it grows bigger (d) it turns blue
19. 19.🔍 Which is the odd one out? (a) tamarind water (b) plain water (c) sugar water (d) salt water
20. 20.⚖️ 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) the kind of balloon (d) spoons of baking soda
21. 21.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) gas is made inside (d) the bottle shrinks
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) baking soda (c) a balloon (d) a tray for spills
23. 23.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the gas froze (c) an ingredient ran out (d) the bottle got tired
24. 24.True or false: vinegar is an acid. (a) False (b) True
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) True (b) False
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the amount of vinegar (c) size of the balloon
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) baking soda (c) a funnel or spoon (d) a balloon
28. 28.🔍 Which is the odd one out? (a) plain water (b) soap solution (c) detergent water (d) baking soda water
29. 29.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
30. 30.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) sugar (c) an empty bottle (d) vinegar
31. 31.True or false: curd is neutral. (a) True (b) False
32. 32.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
33. 33.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
34. 34.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
35. 35.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) vinegar (c) a funnel or spoon (d) a seed
36. 36.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) keep it away from eyes (d) put it in your mouth
37. 37.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) hydrogen (c) carbon dioxide (d) oxygen
38. 38.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
39. 39.🫧 Which of these is a base? (a) baking soda water (b) salt water (c) orange juice (d) sugar water
40. 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the amount of vinegar (c) the same bottle (d) size of the balloon

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