Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 529 · 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 magnet (b) an empty bottle (c) a balloon (d) a tray for spills
2. 2.True or false: orange juice is an acid. (a) True (b) False
3. 3.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) a base (c) an acid
4. 4.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a funnel or spoon (c) a balloon (d) a mirror
5. 5.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) True (b) False
7. 7.🎈 Why does the balloon blow up? (a) outside air gets in (b) the bottle shrinks (c) vinegar is hot (d) gas is made inside
8. 8.True or false: plain water is neutral. (a) True (b) False
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we change it (c) we measure it
10. 10.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) carbon dioxide (c) helium (d) oxygen
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) an empty bottle (c) a tray for spills (d) baking soda
12. 12.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) a funnel or spoon (c) baking soda (d) a tray for spills
13. 13.True or false: curd is a base. (a) True (b) False
14. 14.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a comb (c) a balloon (d) vinegar
15. 15.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) shake it near your face (d) keep it away from eyes
16. 16.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
17. 17.🧺 Do we need a mirror 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: the same bottle is what we measure. (a) False (b) True
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we keep it the same (c) we change it
20. 20.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
21. 21.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) an empty bottle (c) baking soda (d) a battery cell
22. 22.🔍 Which is the odd one out? (a) tamarind water (b) salt water (c) orange juice (d) lemon juice
23. 23.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
24. 24.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they become magnets (c) they freeze (d) they float apart
25. 25.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the gas froze (c) the balloon got cold (d) the bottle got tired
26. 26.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) False (b) True
28. 28.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
29. 29.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) it glows in the dark (c) lots of fizzy bubbles (d) nothing at all
30. 30.🔍 Which is the odd one out? (a) curd (b) baking soda water (c) tamarind water (d) vinegar
31. 31.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda
32. 32.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) plain water
33. 33.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it shrinks (c) there is no change (d) it turns blue
34. 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) a funnel or spoon (d) a seed
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.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
37. 37.⚖️ 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 keep it the same (c) we change it
38. 38.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
39. 39.⚖️ 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
40. 40.⚖️ 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

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