Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 336 · 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.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) there is no change (c) it shrinks (d) it grows bigger
2. 2.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) an ingredient ran out (c) the gas froze (d) the balloon got cold
3. 3.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they react (c) they freeze (d) they become magnets
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a balloon (c) a battery cell (d) an empty bottle
5. 5.True or false: plain water is a base. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) orange juice (b) plain water (c) curd (d) tamarind water
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) a balloon (c) a tray for spills (d) baking soda
8. 8.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) outside air gets in (c) gas is made inside (d) vinegar is hot
9. 9.🔍 Which is the odd one out? (a) vinegar (b) salt water (c) lemon juice (d) tamarind water
10. 10.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
11. 11.True or false: lemon juice is a base. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) vinegar (d) baking soda water
13. 13.🫧 Which of these is neutral? (a) salt water (b) vinegar (c) lemon juice (d) orange juice
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the same bottle
15. 15.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a mirror (c) vinegar (d) a seed
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.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
18. 18.🔍 Which is the odd one out? (a) curd (b) detergent water (c) vinegar (d) tamarind water
19. 19.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) add baking soda (c) rinse with clean water (d) ignore it
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) False (b) True
21. 21.🧺 Which of these is not needed for the fizzy balloon? (a) a magnet (b) vinegar (c) a tray for spills (d) a funnel or spoon
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) the same bottle (c) size of the balloon (d) spoons of baking soda
23. 23.⚖️ 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
24. 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) a magnet (d) an empty bottle
25. 25.⚖️ 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
26. 26.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we measure it (c) we change it
28. 28.🫧 Which of these is a base? (a) tamarind water (b) vinegar (c) baking soda water (d) sugar water
29. 29.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
30. 30.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
31. 31.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
32. 32.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a magnet (c) sugar (d) a tray for spills
33. 33.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) vinegar (c) baking soda (d) a battery cell
34. 34.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) it glows in the dark (c) it turns to ice (d) nothing at all
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) it turns to honey (c) a huge eruption (d) the balloon bursts
37. 37.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
38. 38.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
39. 39.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only melting (c) yes, a new gas forms (d) it is only dissolving
40. 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we keep it the same (c) we measure it

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