Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 647 · 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: vinegar is not needed for the fizzy balloon. (a) True (b) False
2. 2.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) outside air gets in (d) the bottle shrinks
3. 3.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
4. 4.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it shrinks (c) it grows bigger (d) it turns blue
5. 5.⚖️ 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 change it (c) we measure it
6. 6.⚖️ 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 same bottle (c) the amount of vinegar (d) size of the balloon
7. 7.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a seed (c) baking soda (d) sugar
8. 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) True (b) False
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the kind of balloon (b) the same bottle (c) spoons of baking soda (d) the amount of vinegar
10. 10.True or false: tamarind water is an acid. (a) False (b) True
11. 11.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) yes, a new gas forms (c) it is only dissolving (d) no, nothing changes
12. 12.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
13. 13.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
14. 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) a tray for spills (c) a balloon (d) baking soda
15. 15.⚖️ 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
16. 16.📘 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
17. 17.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
18. 18.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) nothing at all (c) it turns to ice (d) lots of fizzy bubbles
19. 19.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) rub it hard (c) add baking soda (d) ignore it
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.🧺 Which of these is needed for the fizzy balloon? (a) a balloon (b) sugar (c) a magnet (d) a battery cell
22. 22.🫧 Which of these is neutral? (a) vinegar (b) soap solution (c) salt water (d) orange juice
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) baking soda (c) a balloon (d) a comb
24. 24.🔍 Which is the odd one out? (a) plain water (b) salt water (c) orange juice (d) sugar water
25. 25.⚖️ 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
26. 26.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) helium (c) oxygen (d) carbon dioxide
27. 27.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) very little fizzing (c) the balloon bursts (d) a huge eruption
28. 28.🔍 Which is the odd one out? (a) vinegar (b) detergent water (c) baking soda water (d) soap solution
29. 29.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) shake it near your face (c) put it in your mouth (d) keep it away from eyes
30. 30.🫧 Which of these is a base? (a) plain water (b) orange juice (c) baking soda water (d) vinegar
31. 31.⚖️ 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) False (b) True
32. 32.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
33. 33.🔍 Which is the odd one out? (a) lemon juice (b) curd (c) orange juice (d) soap solution
34. 34.⚖️ 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
35. 35.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
36. 36.True or false: orange juice is neutral. (a) False (b) True
37. 37.⚖️ 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 amount of vinegar
38. 38.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the gas froze (c) an ingredient ran out (d) the bottle got tired
39. 39.🔍 Which is the odd one out? (a) tamarind water (b) lemon juice (c) curd (d) sugar water
40. 40.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True

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