Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 637 · 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.True or false: salt water is a base. (a) True (b) False
2. 2.🔮 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
3. 3.True or false: lemon juice is a base. (a) True (b) False
4. 4.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) nothing at all (c) it glows in the dark (d) it turns to ice
5. 5.⚖️ 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
6. 6.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a comb (c) a magnet (d) baking soda
7. 7.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) shake it near your face (d) put it in your mouth
8. 8.⚖️ 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 keep it the same (c) we measure it
9. 9.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they become magnets (c) they float apart (d) they freeze
10. 10.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
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.⚖️ 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
13. 13.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
14. 14.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) a mirror (d) an empty bottle
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) True (b) False
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) a balloon (c) an empty bottle (d) vinegar
18. 18.🔍 Which is the odd one out? (a) orange juice (b) curd (c) vinegar (d) soap solution
19. 19.⚖️ 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
20. 20.🧺 Which of these is needed for the fizzy balloon? (a) a funnel or spoon (b) a battery cell (c) a seed (d) a mirror
21. 21.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
22. 22.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it grows bigger (c) it turns blue (d) there is no change
23. 23.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) carbon dioxide (c) oxygen (d) helium
24. 24.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
25. 25.🔍 Which is the odd one out? (a) sugar water (b) detergent water (c) baking soda water (d) soap solution
26. 26.🫧 Is salt water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
28. 28.🫧 Which of these is a base? (a) vinegar (b) lemon juice (c) curd (d) baking soda water
29. 29.True or false: an empty bottle is needed for the fizzy balloon. (a) True (b) False
30. 30.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
31. 31.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) gas is made inside (c) outside air gets in (d) vinegar is hot
32. 32.🫧 Which of these is an acid? (a) vinegar (b) salt water (c) sugar water (d) plain water
33. 33.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
34. 34.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) neutral (c) a base
35. 35.🫧 Which of these is neutral? (a) curd (b) soap solution (c) lemon juice (d) sugar water
36. 36.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) it is only melting (c) yes, a new gas forms (d) no, nothing changes
37. 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) vinegar (c) a funnel or spoon (d) baking soda
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) size of the balloon (c) the kind of balloon (d) the amount of vinegar
39. 39.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a seed (c) a balloon (d) an empty bottle
40. 40.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rinse with clean water (c) add baking soda (d) rub it hard

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