Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 854 · 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.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) vinegar (b) curd (c) orange juice (d) soap solution
3. 3.🫧 Which of these is a base? (a) soap solution (b) curd (c) tamarind water (d) vinegar
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) the same bottle (c) spoons of baking soda
5. 5.🛟 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
6. 6.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it shrinks (c) it turns blue (d) there is no change
7. 7.🫧 Which of these is a base? (a) salt water (b) baking soda water (c) sugar water (d) lemon juice
8. 8.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) baking soda (c) a tray for spills (d) an empty bottle
9. 9.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
10. 10.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) very little fizzing (c) the balloon bursts (d) a huge eruption
11. 11.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) ignore it (c) rub it hard (d) add baking soda
12. 12.⚖️ 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
13. 13.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
14. 14.⚖️ 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
15. 15.⚖️ 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
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we change it (c) we measure it
17. 17.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
18. 18.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a seed (c) a funnel or spoon (d) a comb
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) vinegar (c) a comb (d) an empty bottle
20. 20.🔍 Which is the odd one out? (a) detergent water (b) orange juice (c) baking soda water (d) soap solution
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) True (b) False
22. 22.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they react (c) they become magnets (d) they float apart
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) baking soda (c) vinegar (d) a tray for spills
24. 24.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
25. 25.🧺 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 funnel or spoon (d) a battery cell
26. 26.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
27. 27.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
28. 28.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) the bottle shrinks (d) gas is made inside
29. 29.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) an empty bottle (d) a mirror
30. 30.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
31. 31.⚖️ 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
32. 32.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) an acid (c) neutral
33. 33.🔮 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
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
35. 35.True or false: sugar water is an acid. (a) False (b) True
36. 36.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a mirror (c) a tray for spills (d) vinegar
37. 37.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
38. 38.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) vinegar (c) a battery cell (d) sugar
39. 39.⚖️ 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
40. 40.🫧 Which of these is an acid? (a) curd (b) sugar water (c) soap solution (d) plain water

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