Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 430 · 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.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the kind of balloon (b) size of the balloon (c) spoons of baking soda (d) the amount of vinegar
2. 2.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) sugar (c) a tray for spills (d) baking soda
3. 3.⚖️ 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
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) sugar (c) baking soda (d) vinegar
5. 5.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
6. 6.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
7. 7.🔍 Which is the odd one out? (a) tamarind water (b) salt water (c) plain water (d) sugar water
8. 8.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) plain water
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) spoons of baking soda (c) the same bottle
10. 10.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
11. 11.⚖️ 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
12. 12.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the gas froze (d) the bottle got tired
13. 13.🔍 Which is the odd one out? (a) plain water (b) salt water (c) curd (d) sugar water
14. 14.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) it shrinks (d) there is no change
15. 15.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) it turns to ice (c) nothing at all (d) it glows in the dark
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) False (b) True
17. 17.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
18. 18.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
19. 19.🫧 Which of these is an acid? (a) plain water (b) sugar water (c) orange juice (d) soap solution
20. 20.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a mirror (c) vinegar (d) a seed
21. 21.True or false: a magnet is needed for the fizzy balloon. (a) False (b) True
22. 22.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
23. 23.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) rinse with clean water (c) ignore it (d) add baking soda
24. 24.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) an acid (c) neutral
25. 25.🔍 Which is the odd one out? (a) salt water (b) plain water (c) sugar water (d) lemon juice
26. 26.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) soap solution (d) plain water
27. 27.True or false: baking soda water is a base. (a) True (b) False
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the kind of balloon (b) size of the balloon (c) spoons of baking soda
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) the amount of vinegar (c) the kind of balloon (d) size of the balloon
30. 30.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) hydrogen (c) oxygen (d) helium
31. 31.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a tray for spills (c) a mirror (d) a funnel or spoon
32. 32.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
33. 33.⚖️ 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
34. 34.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
35. 35.True or false: sugar water is neutral. (a) True (b) False
36. 36.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
37. 37.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) it turns to honey (c) very little fizzing (d) a huge eruption
38. 38.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) an empty bottle (c) a seed (d) a magnet
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
40. 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) False (b) True

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