Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 929 · 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) orange juice (b) vinegar (c) tamarind water (d) salt water
2. 2.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the bottle got tired (d) the gas froze
3. 3.True or false: sugar water is an acid. (a) True (b) False
4. 4.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) add baking soda (d) rinse with clean water
5. 5.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) outside air gets in (d) the bottle shrinks
6. 6.⚖️ 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 keep it the same (c) we change it
7. 7.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
8. 8.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it grows bigger (c) it turns blue (d) there is no change
9. 9.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) nothing at all (c) it turns to ice (d) it glows in the dark
10. 10.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) no, nothing changes (c) yes, a new gas forms (d) it is only melting
11. 11.🫧 Which of these is an acid? (a) salt water (b) plain water (c) vinegar (d) detergent water
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.⚖️ 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
14. 14.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) the amount of vinegar (c) size of the balloon (d) the same bottle
16. 16.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a funnel or spoon (c) a magnet (d) baking soda
17. 17.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
18. 18.⚖️ 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
19. 19.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) plain water (d) orange juice
20. 20.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) the amount of vinegar (c) spoons of baking soda (d) the kind of balloon
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) baking soda (c) an empty bottle (d) vinegar
23. 23.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) keep it away from eyes (d) shake it near your face
24. 24.⚖️ 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
25. 25.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
26. 26.True or false: lemon juice is neutral. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) baking soda water (b) plain water (c) soap solution (d) detergent water
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) False (b) True
29. 29.⚖️ 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 change it (c) we keep it the same
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) an empty bottle (c) a balloon (d) a funnel or spoon
31. 31.🫧 Which of these is neutral? (a) orange juice (b) vinegar (c) sugar water (d) tamarind water
32. 32.True or false: vinegar is a base. (a) False (b) True
33. 33.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) vinegar (c) a mirror (d) an empty bottle
34. 34.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
35. 35.🔍 Which is the odd one out? (a) lemon juice (b) tamarind water (c) soap solution (d) orange juice
36. 36.⚖️ 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
37. 37.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) an empty bottle (c) a mirror (d) a balloon
38. 38.🔍 Which is the odd one out? (a) salt water (b) lemon juice (c) sugar water (d) plain water
39. 39.🧺 Which of these is not needed for the fizzy balloon? (a) a battery cell (b) a tray for spills (c) baking soda (d) vinegar
40. 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) True (b) False

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