Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 50 · 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: baking soda is not needed for the fizzy balloon. (a) False (b) True
2. 2.True or false: lemon juice is neutral. (a) True (b) False
3. 3.🫧 Is curd an acid, a base or neutral? (a) a base (b) an acid (c) neutral
4. 4.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) vinegar (c) a mirror (d) a seed
5. 5.True or false: a balloon is needed for the fizzy balloon. (a) False (b) True
6. 6.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
7. 7.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a mirror (c) an empty bottle (d) sugar
8. 8.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
9. 9.⚖️ 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 kind of balloon (c) spoons of baking soda
10. 10.🫧 Which of these is neutral? (a) tamarind water (b) plain water (c) lemon juice (d) soap solution
11. 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) a magnet (d) a tray for spills
12. 12.⚖️ 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 amount of vinegar (c) spoons of baking soda
13. 13.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.🫧 Which of these is neutral? (a) orange juice (b) vinegar (c) salt water (d) baking soda water
16. 16.🫧 Which of these is an acid? (a) plain water (b) sugar water (c) orange juice (d) detergent water
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a balloon (c) baking soda (d) a battery cell
18. 18.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they freeze (c) they float apart (d) they react
19. 19.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we measure it (c) we change it
21. 21.🔍 Which is the odd one out? (a) vinegar (b) orange juice (c) lemon juice (d) sugar water
22. 22.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
23. 23.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
24. 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a tray for spills (c) vinegar (d) a comb
25. 25.⚖️ 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 keep it the same (c) we measure it
26. 26.True or false: vinegar is not needed for the fizzy balloon. (a) True (b) False
27. 27.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) rub it hard (c) add baking soda (d) ignore it
28. 28.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) shake it near your face (c) put it in your mouth (d) seal it in a glass jar
29. 29.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) lots of fizzy bubbles (c) it turns to ice (d) nothing at all
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) True (b) False
31. 31.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) outside air gets in (d) the bottle shrinks
32. 32.⚖️ 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
33. 33.True or false: detergent water is an acid. (a) True (b) False
34. 34.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
35. 35.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) sugar (c) a seed (d) a tray for spills
36. 36.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) it is only dissolving (c) it is only melting (d) no, nothing changes
37. 37.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
38. 38.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
39. 39.🔍 Which is the odd one out? (a) salt water (b) plain water (c) orange juice (d) sugar water
40. 40.🔮 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

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