Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 602 · 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? Which of these is kept the same? (a) the same bottle (b) spoons of baking soda (c) size of the balloon
2. 2.🫧 Which of these is a base? (a) salt water (b) baking soda water (c) curd (d) vinegar
3. 3.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) shake it near your face (c) keep it away from eyes (d) seal it in a glass jar
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) spoons of baking soda (c) the same bottle (d) the amount of vinegar
5. 5.True or false: tamarind water is a base. (a) False (b) True
6. 6.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the gas froze (c) an ingredient ran out (d) the balloon got cold
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) an empty bottle (c) a seed (d) a balloon
8. 8.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) vinegar (c) baking soda (d) a battery cell
9. 9.🔍 Which is the odd one out? (a) tamarind water (b) plain water (c) vinegar (d) orange juice
10. 10.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
11. 11.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
12. 12.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
13. 13.True or false: lemon juice is an acid. (a) False (b) True
14. 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) an empty bottle (c) a battery cell (d) a tray for spills
15. 15.⚖️ 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
16. 16.True or false: detergent water is a base. (a) False (b) True
17. 17.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it shrinks (c) it grows bigger (d) there is no change
18. 18.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a tray for spills (c) sugar (d) a battery cell
19. 19.True or false: vinegar is an acid. (a) False (b) True
20. 20.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) it is only dissolving (c) no, nothing changes (d) it is only melting
21. 21.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) baking soda (c) an empty bottle (d) a comb
23. 23.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) outside air gets in (d) the bottle shrinks
24. 24.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) orange juice
25. 25.🫧 Which of these is an acid? (a) orange juice (b) plain water (c) soap solution (d) baking soda water
26. 26.⚖️ 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 kind of balloon (c) size of the balloon
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the kind of balloon (b) spoons of baking soda (c) the amount of vinegar (d) size of the balloon
28. 28.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
29. 29.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
30. 30.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
31. 31.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) an empty bottle (c) a balloon (d) a mirror
32. 32.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
33. 33.🛟 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
34. 34.⚖️ 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 keep it the same (c) we change it
35. 35.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
36. 36.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
37. 37.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) soap solution (d) sugar water
38. 38.🔮 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
39. 39.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a comb (c) a tray for spills (d) a funnel or spoon
40. 40.🫧 Which of these is an acid? (a) soap solution (b) plain water (c) sugar water (d) tamarind water

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