Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 645 · 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.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) the bottle shrinks (d) gas is made inside
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
3. 3.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a funnel or spoon (c) an empty bottle (d) a magnet
4. 4.⚖️ 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) False (b) True
5. 5.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
6. 6.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it turns to ice (c) lots of fizzy bubbles (d) it glows in the dark
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a tray for spills (c) a magnet (d) baking soda
8. 8.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
9. 9.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
10. 10.⚖️ 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
11. 11.🫧 Which of these is an acid? (a) plain water (b) soap solution (c) curd (d) baking soda water
12. 12.🫧 Which of these is neutral? (a) soap solution (b) vinegar (c) plain water (d) tamarind water
13. 13.True or false: vinegar is not needed for the fizzy balloon. (a) True (b) False
14. 14.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) it shrinks (d) there is no change
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 measure it (c) we keep it the same
16. 16.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) very little fizzing (d) the balloon bursts
17. 17.🔍 Which is the odd one out? (a) plain water (b) salt water (c) soap solution (d) sugar water
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we change it (c) we keep it the same
19. 19.🫧 Which of these is a base? (a) curd (b) plain water (c) vinegar (d) soap solution
20. 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a battery cell (c) an empty bottle (d) baking soda
21. 21.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) baking soda (c) a mirror (d) a magnet
22. 22.True or false: soap solution is a base. (a) False (b) True
23. 23.⚖️ 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
24. 24.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a seed (c) a funnel or spoon (d) sugar
25. 25.⚖️ 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 amount of vinegar (d) the same bottle
26. 26.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a mirror (c) a funnel or spoon (d) a tray for spills
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) False (b) True
29. 29.True or false: sugar water is neutral. (a) True (b) False
30. 30.🫧 Which of these is an acid? (a) orange juice (b) salt water (c) plain water (d) soap solution
31. 31.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
32. 32.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) add baking soda (d) rinse with clean water
33. 33.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
34. 34.⚖️ 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 amount of vinegar (c) the same bottle (d) spoons of baking soda
35. 35.⚖️ 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
36. 36.True or false: sugar is not needed for the fizzy balloon. (a) True (b) False
37. 37.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
38. 38.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) plain water (d) vinegar
39. 39.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) put it in your mouth (c) keep it away from eyes (d) shake it near your face
40. 40.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) helium (c) hydrogen (d) carbon dioxide

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