Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 574 · 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.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the gas froze (c) the balloon got cold (d) an ingredient ran out
2. 2.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) sugar (d) an empty bottle
4. 4.⚖️ 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
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a seed (c) a funnel or spoon (d) a tray for spills
6. 6.⚖️ 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 kind of balloon (d) the amount of vinegar
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) True (b) False
8. 8.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) an acid (c) a base
9. 9.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) it glows in the dark (c) nothing at all (d) lots of fizzy bubbles
10. 10.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) an acid (c) neutral
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) sugar (b) a tray for spills (c) a funnel or spoon (d) a balloon
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
13. 13.⚖️ 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
14. 14.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) a battery cell (c) a magnet (d) a mirror
15. 15.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a balloon (c) a magnet (d) a seed
16. 16.True or false: vinegar is neutral. (a) True (b) False
17. 17.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
18. 18.⚖️ 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
19. 19.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it turns blue (c) there is no change (d) it grows bigger
20. 20.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a seed (c) a tray for spills (d) sugar
21. 21.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a battery cell (c) a magnet (d) a funnel or spoon
22. 22.🔍 Which is the odd one out? (a) salt water (b) orange juice (c) plain water (d) sugar water
23. 23.🛟 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
24. 24.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) helium (c) carbon dioxide (d) hydrogen
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
27. 27.⚖️ 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
28. 28.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we keep it the same (c) we change it
30. 30.🎈 Why does the balloon blow up? (a) outside air gets in (b) gas is made inside (c) vinegar is hot (d) the bottle shrinks
31. 31.⚖️ 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
32. 32.True or false: salt water is a base. (a) False (b) True
33. 33.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they react (c) they float apart (d) they become magnets
34. 34.🔍 Which is the odd one out? (a) detergent water (b) tamarind water (c) curd (d) vinegar
35. 35.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a battery cell (c) an empty bottle (d) baking soda
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) the kind of balloon (c) the amount of vinegar (d) spoons of baking soda
37. 37.🔍 Which is the odd one out? (a) vinegar (b) baking soda water (c) tamarind water (d) orange juice
38. 38.🫧 Which of these is neutral? (a) lemon juice (b) vinegar (c) tamarind water (d) plain water
39. 39.🫧 Which of these is a base? (a) soap solution (b) sugar water (c) salt water (d) lemon juice
40. 40.⚖️ 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 same bottle

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