Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 750 · 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.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.True or false: sugar is not needed for the fizzy balloon. (a) True (b) False
3. 3.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) a huge eruption (c) the balloon bursts (d) it turns to honey
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
5. 5.⚖️ 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
6. 6.🫧 Which of these is neutral? (a) plain water (b) tamarind water (c) lemon juice (d) baking soda water
7. 7.⚖️ 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
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) baking soda (c) vinegar (d) a tray for spills
10. 10.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it turns to ice (c) it glows in the dark (d) lots of fizzy bubbles
11. 11.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) seal it in a glass jar (d) keep it away from eyes
12. 12.True or false: plain water is neutral. (a) False (b) True
13. 13.⚖️ 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
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) size of the balloon (c) the kind of balloon (d) spoons of baking soda
15. 15.True or false: soap solution is an acid. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) salt water (b) lemon juice (c) tamarind water (d) orange juice
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a seed (c) a tray for spills (d) a balloon
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a magnet (c) vinegar (d) a balloon
20. 20.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
21. 21.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
22. 22.⚖️ 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
23. 23.🫧 Is curd an acid, a base or neutral? (a) an acid (b) neutral (c) a base
24. 24.🔍 Which is the odd one out? (a) baking soda water (b) curd (c) detergent water (d) soap solution
25. 25.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
26. 26.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
27. 27.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
28. 28.⚖️ 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 kind of balloon (c) spoons of baking soda (d) the same bottle
29. 29.True or false: sugar water is an acid. (a) False (b) True
30. 30.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) hydrogen (c) oxygen (d) carbon dioxide
31. 31.🔍 Which is the odd one out? (a) sugar water (b) detergent water (c) salt water (d) plain water
32. 32.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
33. 33.📘 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
34. 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) a comb (d) an empty bottle
35. 35.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a funnel or spoon (c) a seed (d) a battery cell
36. 36.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a seed (c) a balloon (d) a funnel or spoon
37. 37.🔍 Which is the odd one out? (a) plain water (b) tamarind water (c) salt water (d) sugar water
38. 38.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) add baking soda (c) ignore it (d) rinse with clean water
39. 39.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) sugar (c) a mirror (d) an empty bottle
40. 40.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed

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