Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 488 · 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.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a magnet (c) baking soda (d) an empty bottle
2. 2.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rinse with clean water (c) rub it hard (d) ignore it
3. 3.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) an empty bottle (c) a funnel or spoon (d) a comb
5. 5.⚖️ 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 change it (c) we keep it the same
6. 6.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) the bottle got tired (d) an ingredient ran out
7. 7.⚖️ 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
8. 8.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) vinegar (c) an empty bottle (d) a mirror
10. 10.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) baking soda (c) a magnet (d) a tray for spills
11. 11.⚖️ 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
12. 12.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
13. 13.🧺 Which of these is not needed for the fizzy balloon? (a) sugar (b) vinegar (c) baking soda (d) an empty bottle
14. 14.True or false: sugar water is a base. (a) False (b) True
15. 15.True or false: detergent water is neutral. (a) True (b) False
16. 16.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) there is no change (d) it shrinks
17. 17.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) put it in your mouth (d) keep it away from eyes
18. 18.🔍 Which is the odd one out? (a) plain water (b) tamarind water (c) sugar water (d) salt water
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) sugar (c) an empty bottle (d) a funnel or spoon
20. 20.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) a funnel or spoon (c) a tray for spills (d) an empty bottle
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a tray for spills (c) a battery cell (d) baking soda
23. 23.🫧 Is salt water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
24. 24.True or false: sugar water is neutral. (a) False (b) True
25. 25.True or false: soap solution is neutral. (a) False (b) True
26. 26.True or false: detergent water is an acid. (a) True (b) False
27. 27.True or false: vinegar is neutral. (a) True (b) False
28. 28.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) False (b) True
30. 30.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a mirror (c) vinegar (d) sugar
31. 31.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) the bottle shrinks (d) outside air gets in
32. 32.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they become magnets (c) they react (d) they freeze
33. 33.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the same bottle (b) the amount of vinegar (c) spoons of baking soda (d) the kind of balloon
35. 35.⚖️ 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 kind of balloon
36. 36.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) helium (c) carbon dioxide (d) oxygen
37. 37.True or false: vinegar is a base. (a) False (b) True
38. 38.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
39. 39.🫧 Which of these is a base? (a) detergent water (b) tamarind water (c) sugar water (d) orange juice
40. 40.🫧 Which of these is a base? (a) lemon juice (b) baking soda water (c) vinegar (d) orange juice

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