Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 165 · 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 is the odd one out? (a) sugar water (b) plain water (c) salt water (d) baking soda water
2. 2.🫧 Which of these is an acid? (a) sugar water (b) salt water (c) plain water (d) lemon juice
3. 3.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) sugar (c) a mirror (d) a comb
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) vinegar (c) baking soda (d) an empty bottle
5. 5.True or false: soap solution is neutral. (a) True (b) False
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) True (b) False
7. 7.True or false: curd is an acid. (a) False (b) True
8. 8.⚖️ 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 same bottle
9. 9.🔍 Which is the odd one out? (a) sugar water (b) lemon juice (c) plain water (d) salt water
10. 10.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
11. 11.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
12. 12.⚖️ 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 amount of vinegar
13. 13.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) rinse with clean water (d) add baking soda
14. 14.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) nothing at all (c) lots of fizzy bubbles (d) it glows in the dark
15. 15.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
16. 16.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) it shrinks (d) there is no change
17. 17.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
18. 18.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) True (b) False
20. 20.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) shake it near your face (c) keep it away from eyes (d) seal it in a glass jar
21. 21.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the bottle got tired (c) the balloon got cold (d) the gas froze
22. 22.🫧 Which of these is neutral? (a) orange juice (b) plain water (c) soap solution (d) tamarind water
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) a battery cell (d) a funnel or spoon
24. 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a balloon (c) a magnet (d) baking soda
25. 25.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) a huge eruption (c) the balloon bursts (d) very little fizzing
26. 26.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) salt water (d) soap solution
27. 27.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
28. 28.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) the same bottle (c) spoons of baking soda (d) the kind of balloon
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 tray for spills (d) a seed
31. 31.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a magnet (c) vinegar (d) baking soda
32. 32.🔍 Which is the odd one out? (a) curd (b) orange juice (c) tamarind water (d) soap solution
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we measure it (c) we change it
34. 34.True or false: sugar is needed for the fizzy balloon. (a) False (b) True
35. 35.🫧 Which of these is an acid? (a) sugar water (b) tamarind water (c) plain water (d) detergent water
36. 36.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
37. 37.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) the bottle shrinks (d) gas is made inside
38. 38.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) False (b) True
40. 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we change it (c) we keep it the same

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