Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 44 · 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.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) an empty bottle (c) a magnet (d) baking soda
2. 2.⚖️ 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
3. 3.True or false: baking soda water is a base. (a) False (b) True
4. 4.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
5. 5.True or false: baking soda water is an acid. (a) True (b) False
6. 6.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) neutral (c) a base
7. 7.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
8. 8.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) outside air gets in (d) gas is made inside
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
10. 10.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
11. 11.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) sugar (c) a tray for spills (d) a seed
12. 12.🫧 Which of these is an acid? (a) salt water (b) detergent water (c) orange juice (d) soap solution
13. 13.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we measure it (c) we keep it the same
15. 15.🫧 Is curd an acid, a base or neutral? (a) an acid (b) a base (c) neutral
16. 16.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a balloon (c) a mirror (d) a tray for spills
17. 17.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) carbon dioxide (c) helium (d) hydrogen
18. 18.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the bottle got tired (c) the gas froze (d) the balloon got cold
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) False (b) True
20. 20.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) add baking soda (c) rinse with clean water (d) ignore it
21. 21.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) put it in your mouth (d) shake it near your face
22. 22.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a tray for spills (c) a comb (d) a balloon
23. 23.⚖️ 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
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) the amount of vinegar (c) the kind of balloon (d) the same bottle
25. 25.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
26. 26.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) sugar (c) baking soda (d) an empty bottle
27. 27.🔍 Which is the odd one out? (a) sugar water (b) baking soda water (c) plain water (d) salt water
28. 28.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the kind of balloon (c) size of the balloon (d) the amount of vinegar
30. 30.🔍 Which is the odd one out? (a) soap solution (b) sugar water (c) detergent water (d) baking soda water
31. 31.True or false: plain water is an acid. (a) True (b) False
32. 32.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) vinegar (c) baking soda (d) an empty bottle
33. 33.True or false: sugar water is neutral. (a) True (b) False
34. 34.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
35. 35.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
36. 36.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
37. 37.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
38. 38.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) a huge eruption (c) very little fizzing (d) the balloon bursts
39. 39.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) an empty bottle (c) a seed (d) a funnel or spoon
40. 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a funnel or spoon (c) an empty bottle (d) a battery cell

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