Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 243 · 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.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) an ingredient ran out (d) the bottle got tired
2. 2.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
3. 3.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
4. 4.⚖️ 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 amount of vinegar
5. 5.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
6. 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) vinegar (c) an empty bottle (d) a funnel or spoon
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
8. 8.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
9. 9.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) yes, a new gas forms (c) it is only dissolving (d) no, nothing changes
10. 10.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
11. 11.🧺 Which of these is needed for the fizzy balloon? (a) a funnel or spoon (b) a mirror (c) a magnet (d) a seed
12. 12.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a battery cell (c) a mirror (d) an empty bottle
13. 13.🔍 Which is the odd one out? (a) plain water (b) detergent water (c) soap solution (d) baking soda water
14. 14.⚖️ 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 measure it (c) we keep it the same
15. 15.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) put it in your mouth (d) keep it away from eyes
16. 16.🔍 Which is the odd one out? (a) salt water (b) plain water (c) sugar water (d) detergent water
17. 17.🫧 Which of these is an acid? (a) baking soda water (b) orange juice (c) soap solution (d) plain water
18. 18.🔍 Which is the odd one out? (a) plain water (b) salt water (c) soap solution (d) sugar water
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a battery cell (c) vinegar (d) a balloon
20. 20.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
21. 21.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) a mirror (d) a funnel or spoon
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) True (b) False
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) orange juice (b) soap solution (c) detergent water (d) baking soda water
26. 26.True or false: baking soda water is a base. (a) False (b) True
27. 27.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
28. 28.🫧 Which of these is a base? (a) lemon juice (b) sugar water (c) plain water (d) detergent water
29. 29.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a magnet (c) an empty bottle (d) a tray for spills
30. 30.True or false: plain water is neutral. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) orange juice (b) baking soda water (c) vinegar (d) curd
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we change it (c) we keep it the same
33. 33.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
34. 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) baking soda (c) a comb (d) vinegar
35. 35.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) a huge eruption (c) it turns to honey (d) the balloon bursts
36. 36.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) rinse with clean water (d) add baking soda
37. 37.True or false: orange juice is an acid. (a) False (b) True
38. 38.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we keep it the same (c) we measure it
40. 40.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) an empty bottle (c) a mirror (d) a tray for spills

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