Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 652 · 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 grows bigger (d) it shrinks
2. 2.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
3. 3.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) salt water (d) lemon juice
4. 4.🫧 Which of these is a base? (a) tamarind water (b) orange juice (c) detergent water (d) salt water
5. 5.🎈 Why does the balloon blow up? (a) gas is made inside (b) the bottle shrinks (c) vinegar is hot (d) outside air gets in
6. 6.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the bottle got tired (c) an ingredient ran out (d) the gas froze
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) an empty bottle (d) a mirror
8. 8.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
9. 9.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) lots of fizzy bubbles (c) it glows in the dark (d) it turns to ice
10. 10.🔍 Which is the odd one out? (a) lemon juice (b) curd (c) vinegar (d) baking soda water
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a tray for spills (c) a battery cell (d) a funnel or spoon
12. 12.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a mirror (c) baking soda (d) a tray for spills
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) spoons of baking soda (c) the amount of vinegar (d) size of the balloon
14. 14.True or false: tamarind water is a base. (a) True (b) False
15. 15.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
16. 16.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
17. 17.🫧 Which of these is an acid? (a) salt water (b) sugar water (c) orange juice (d) soap solution
18. 18.🫧 Which of these is neutral? (a) sugar water (b) soap solution (c) vinegar (d) tamarind water
19. 19.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a mirror (c) vinegar (d) a magnet
20. 20.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rinse with clean water (c) add baking soda (d) rub it hard
21. 21.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
22. 22.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a seed (c) sugar (d) a tray for spills
23. 23.⚖️ 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) True (b) False
24. 24.⚖️ 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
25. 25.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) shake it near your face (c) seal it in a glass jar (d) put it in your mouth
26. 26.🔍 Which is the odd one out? (a) detergent water (b) salt water (c) baking soda water (d) soap solution
27. 27.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) plain water (d) baking soda water
28. 28.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) it turns to honey (c) very little fizzing (d) a huge eruption
29. 29.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a funnel or spoon (c) a battery cell (d) an empty bottle
30. 30.⚖️ 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) True (b) False
31. 31.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
32. 32.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) baking soda (c) sugar (d) a battery cell
33. 33.🫧 Which of these is neutral? (a) tamarind water (b) plain water (c) soap solution (d) curd
34. 34.⚖️ 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
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.🫧 Which of these is an acid? (a) soap solution (b) sugar water (c) tamarind water (d) detergent water
37. 37.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
38. 38.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) a base (c) neutral
39. 39.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
40. 40.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a tray for spills (c) a seed (d) vinegar

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