Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 56 · 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 is the odd one out? (a) lemon juice (b) tamarind water (c) plain water (d) vinegar
2. 2.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
3. 3.🫧 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
4. 4.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) salt water (d) curd
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) size of the balloon (c) the kind of balloon (d) the amount of vinegar
6. 6.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) the balloon bursts (c) very little fizzing (d) a huge eruption
7. 7.🔍 Which is the odd one out? (a) orange juice (b) salt water (c) tamarind water (d) lemon juice
8. 8.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) sugar (c) a mirror (d) a balloon
9. 9.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) helium (c) hydrogen (d) oxygen
10. 10.🫧 Which of these is neutral? (a) soap solution (b) plain water (c) curd (d) lemon juice
11. 11.🫧 Which of these is an acid? (a) salt water (b) sugar water (c) tamarind water (d) soap solution
12. 12.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) an empty bottle (c) a battery cell (d) a seed
13. 13.⚖️ 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
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the amount of vinegar
15. 15.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
16. 16.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a funnel or spoon (c) vinegar (d) a comb
17. 17.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
18. 18.🫧 Which of these is an acid? (a) detergent water (b) salt water (c) orange juice (d) baking soda water
19. 19.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
20. 20.🎈 Why does the balloon blow up? (a) vinegar is hot (b) the bottle shrinks (c) gas is made inside (d) outside air gets in
21. 21.🫧 Which of these is a base? (a) lemon juice (b) baking soda water (c) orange juice (d) vinegar
22. 22.🫧 Is plain water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
23. 23.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
24. 24.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
25. 25.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
26. 26.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) ignore it (c) add baking soda (d) rub it hard
27. 27.True or false: vinegar is an acid. (a) False (b) True
28. 28.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) baking soda (c) a tray for spills (d) a mirror
29. 29.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
30. 30.⚖️ 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 measure it (c) we keep it the same
31. 31.⚖️ 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
32. 32.True or false: curd is neutral. (a) True (b) False
33. 33.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
34. 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) vinegar (d) a seed
35. 35.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it turns blue (c) it grows bigger (d) it shrinks
36. 36.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
37. 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) a magnet (d) a balloon
38. 38.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a seed (c) a battery cell (d) a tray for spills
39. 39.True or false: sugar is not needed for the fizzy balloon. (a) True (b) False
40. 40.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed

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