Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 508 · 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 balloon (b) vinegar (c) an empty bottle (d) sugar
2. 2.True or false: lemon juice is neutral. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) sugar water (b) detergent water (c) baking soda water (d) soap solution
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon (d) the kind of balloon
5. 5.⚖️ 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
6. 6.True or false: orange juice is an acid. (a) False (b) True
7. 7.⚖️ 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
8. 8.🔍 Which is the odd one out? (a) plain water (b) salt water (c) sugar water (d) tamarind water
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a funnel or spoon (c) a comb (d) a balloon
10. 10.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) it glows in the dark (c) nothing at all (d) it turns to ice
11. 11.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
12. 12.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) vinegar (c) sugar (d) a battery cell
13. 13.True or false: tamarind water is neutral. (a) False (b) True
14. 14.🔮 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
15. 15.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they float apart (c) they freeze (d) they react
16. 16.True or false: lemon juice is an acid. (a) False (b) True
17. 17.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
18. 18.True or false: plain water is neutral. (a) False (b) True
19. 19.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) outside air gets in (d) gas is made inside
20. 20.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a mirror (c) baking soda (d) a battery cell
21. 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) a funnel or spoon (c) a balloon (d) vinegar
22. 22.🔍 Which is the odd one out? (a) lemon juice (b) tamarind water (c) curd (d) baking soda water
23. 23.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
24. 24.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
25. 25.⚖️ 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
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we measure it (c) we change it
27. 27.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) very little fizzing (d) the balloon bursts
28. 28.🫧 Is curd an acid, a base or neutral? (a) neutral (b) an acid (c) a base
29. 29.🧺 Which of these is needed for the fizzy balloon? (a) a tray for spills (b) a seed (c) sugar (d) a comb
30. 30.True or false: sugar water is a base. (a) False (b) True
31. 31.🛟 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
32. 32.🔍 Which is the odd one out? (a) curd (b) salt water (c) orange juice (d) lemon juice
33. 33.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) add baking soda (c) rub it hard (d) ignore it
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) spoons of baking soda (c) the same bottle (d) the kind of balloon
35. 35.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
36. 36.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) an acid (c) a base
37. 37.True or false: baking soda water is an acid. (a) False (b) True
38. 38.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
39. 39.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a balloon (c) sugar (d) a mirror
40. 40.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed

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