Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 73 · 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.🫧 Which of these is a base? (a) curd (b) vinegar (c) tamarind water (d) detergent water
2. 2.⚖️ 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 keep it the same (c) we measure it
3. 3.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it glows in the dark (c) lots of fizzy bubbles (d) it turns to ice
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) False (b) True
5. 5.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they freeze (c) they react (d) they become magnets
6. 6.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
7. 7.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
8. 8.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) the balloon bursts (c) a huge eruption (d) very little fizzing
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a comb (c) a balloon (d) baking soda
10. 10.⚖️ 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 measure it (c) we change it
11. 11.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) keep it away from eyes (d) shake it near your face
12. 12.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
13. 13.⚖️ 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 change it (c) we keep it the same
14. 14.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
15. 15.🔍 Which is the odd one out? (a) soap solution (b) orange juice (c) detergent water (d) baking soda water
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda (d) the kind of balloon
17. 17.True or false: a mirror is needed for the fizzy balloon. (a) False (b) True
18. 18.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
19. 19.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a tray for spills (c) a seed (d) a mirror
20. 20.⚖️ 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
21. 21.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) baking soda (c) vinegar (d) a battery cell
22. 22.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the bottle got tired (c) an ingredient ran out (d) the balloon got cold
23. 23.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) an acid (c) neutral
24. 24.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
25. 25.⚖️ 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
26. 26.True or false: curd is a base. (a) True (b) False
27. 27.🛟 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
28. 28.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) soap solution (d) plain water
29. 29.True or false: plain water is a base. (a) True (b) False
30. 30.⚖️ 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
31. 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a battery cell (c) an empty bottle (d) baking soda
32. 32.🔍 Which is the odd one out? (a) baking soda water (b) curd (c) lemon juice (d) orange juice
33. 33.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) vinegar (c) a battery cell (d) sugar
34. 34.True or false: sugar water is neutral. (a) True (b) False
35. 35.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a funnel or spoon (c) a battery cell (d) sugar
36. 36.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
37. 37.True or false: orange juice is neutral. (a) False (b) True
38. 38.🫧 Which of these is an acid? (a) baking soda water (b) salt water (c) vinegar (d) plain water
39. 39.True or false: vinegar is an acid. (a) True (b) False
40. 40.🫧 Which of these is an acid? (a) baking soda water (b) plain water (c) soap solution (d) orange juice

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