Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 512 · 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.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.⚖️ 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
3. 3.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) a huge eruption (c) it turns to honey (d) very little fizzing
4. 4.True or false: tamarind water is neutral. (a) True (b) False
5. 5.True or false: baking soda water is a base. (a) False (b) True
6. 6.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) the bottle shrinks (d) gas is made inside
7. 7.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) add baking soda (c) ignore it (d) rub it hard
8. 8.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
9. 9.🔍 Which is the odd one out? (a) curd (b) plain water (c) vinegar (d) orange juice
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) sugar (c) a balloon (d) vinegar
11. 11.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) it is only melting (c) it is only dissolving (d) no, nothing changes
12. 12.🫧 Which of these is a base? (a) salt water (b) vinegar (c) soap solution (d) lemon juice
13. 13.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
14. 14.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
15. 15.⚖️ 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
16. 16.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) an empty bottle (c) sugar (d) a balloon
17. 17.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
18. 18.🫧 Which of these is an acid? (a) detergent water (b) salt water (c) curd (d) soap solution
19. 19.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
20. 20.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it turns blue (c) it grows bigger (d) it shrinks
21. 21.True or false: sugar water is a base. (a) True (b) False
22. 22.⚖️ 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
23. 23.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) keep it away from eyes (c) seal it in a glass jar (d) put it in your mouth
24. 24.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) sugar (c) a battery cell (d) a comb
25. 25.True or false: curd is an acid. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) soap solution (d) salt water
27. 27.⚖️ 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
28. 28.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the amount of vinegar (b) the kind of balloon (c) spoons of baking soda (d) the same bottle
30. 30.⚖️ 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
31. 31.🫧 Which of these is an acid? (a) baking soda water (b) soap solution (c) orange juice (d) plain water
32. 32.🫧 Which of these is a base? (a) vinegar (b) baking soda water (c) sugar water (d) orange juice
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
34. 34.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
35. 35.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) baking soda (c) a battery cell (d) an empty bottle
36. 36.True or false: detergent water is a base. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) orange juice
38. 38.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) detergent water (d) curd
39. 39.🔍 Which is the odd one out? (a) orange juice (b) lemon juice (c) vinegar (d) salt water
40. 40.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed

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