Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 150 · 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) plain water (b) sugar water (c) salt water (d) curd
2. 2.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) sugar (c) a mirror (d) baking soda
3. 3.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
4. 4.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
5. 5.True or false: plain water is neutral. (a) False (b) True
6. 6.True or false: soap solution is neutral. (a) True (b) False
7. 7.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) sugar (c) an empty bottle (d) a seed
8. 8.🫧 Which of these is neutral? (a) lemon juice (b) curd (c) plain water (d) orange juice
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) a balloon (d) sugar
10. 10.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
11. 11.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) the balloon bursts (c) a huge eruption (d) very little fizzing
12. 12.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it grows bigger (c) it turns blue (d) it shrinks
13. 13.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) sugar (c) a tray for spills (d) an empty bottle
14. 14.True or false: sugar water is neutral. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) lemon juice (b) plain water (c) sugar water (d) salt water
16. 16.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a magnet (c) a funnel or spoon (d) a balloon
17. 17.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rinse with clean water (c) ignore it (d) rub it hard
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a seed (c) a funnel or spoon (d) an empty bottle
19. 19.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a balloon (c) a seed (d) baking soda
20. 20.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) put it in your mouth (c) keep it away from eyes (d) shake it near your face
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) size of the balloon (c) the same bottle (d) the amount of vinegar
22. 22.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
23. 23.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) yes, a new gas forms (c) it is only melting (d) no, nothing changes
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) the same bottle (c) size of the balloon
25. 25.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a comb (c) a seed (d) a funnel or spoon
26. 26.🔍 Which is the odd one out? (a) soap solution (b) plain water (c) salt water (d) sugar water
27. 27.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) vinegar (c) a magnet (d) an empty bottle
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) plain water (d) detergent water
30. 30.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a tray for spills (c) a comb (d) an empty bottle
31. 31.🫧 Is plain water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
32. 32.⚖️ 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
33. 33.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) oxygen (c) helium (d) carbon dioxide
34. 34.🫧 Which of these is neutral? (a) sugar water (b) detergent water (c) curd (d) vinegar
35. 35.True or false: salt water is neutral. (a) True (b) False
36. 36.🫧 Which of these is a base? (a) orange juice (b) sugar water (c) baking soda water (d) plain water
37. 37.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) sugar water (d) baking soda water
38. 38.🫧 Which of these is a base? (a) orange juice (b) vinegar (c) detergent water (d) curd
39. 39.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
40. 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) an empty bottle (d) a battery cell

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