Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 825 · 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 not needed for the fizzy balloon? (a) a balloon (b) a seed (c) baking soda (d) a funnel or spoon
2. 2.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rinse with clean water (c) ignore it (d) rub it hard
3. 3.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they float apart (c) they react (d) they become magnets
4. 4.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) helium (c) oxygen (d) carbon dioxide
5. 5.True or false: tamarind water is neutral. (a) True (b) False
6. 6.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) shake it near your face (c) put it in your mouth (d) seal it in a glass jar
7. 7.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
8. 8.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it shrinks (c) it turns blue (d) it grows bigger
9. 9.🔍 Which is the odd one out? (a) tamarind water (b) lemon juice (c) orange juice (d) soap solution
10. 10.⚖️ 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 keep it the same (c) we measure it
11. 11.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) vinegar (c) a seed (d) a magnet
12. 12.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) it is only melting (c) no, nothing changes (d) yes, a new gas forms
13. 13.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) sugar water (b) detergent water (c) salt water (d) plain water
15. 15.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a tray for spills (c) a magnet (d) a funnel or spoon
16. 16.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the balloon got cold (c) an ingredient ran out (d) the gas froze
17. 17.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a funnel or spoon (c) vinegar (d) a mirror
18. 18.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) outside air gets in (c) gas is made inside (d) vinegar is hot
19. 19.True or false: a battery cell is not needed for the fizzy balloon. (a) True (b) False
20. 20.🫧 Which of these is an acid? (a) soap solution (b) plain water (c) tamarind water (d) baking soda water
21. 21.⚖️ 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 change it (c) we measure it
22. 22.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a funnel or spoon (c) a comb (d) baking soda
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) True (b) False
24. 24.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the same bottle (b) size of the balloon (c) spoons of baking soda
26. 26.⚖️ 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) the same bottle (c) the kind of balloon (d) spoons of baking soda
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon
28. 28.True or false: lemon juice is an acid. (a) False (b) True
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) the amount of vinegar (c) spoons of baking soda (d) size of the balloon
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) an empty bottle (d) sugar
31. 31.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) True (b) False
32. 32.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a mirror (c) a seed (d) baking soda
33. 33.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a tray for spills (c) sugar (d) an empty bottle
34. 34.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
35. 35.⚖️ 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
36. 36.⚖️ 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 kind of balloon
37. 37.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
39. 39.🫧 Which of these is neutral? (a) sugar water (b) lemon juice (c) detergent water (d) tamarind water
40. 40.🔍 Which is the odd one out? (a) plain water (b) salt water (c) sugar water (d) lemon juice

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