Baking Soda and Vinegar Experiment Worksheet

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

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