Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 320 · 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 safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) keep it away from eyes (d) put it in your mouth
2. 2.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the same bottle (c) size of the balloon (d) the amount of vinegar
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) a tray for spills (c) a balloon (d) baking soda
5. 5.⚖️ 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
6. 6.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
7. 7.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) no, nothing changes (c) yes, a new gas forms (d) it is only dissolving
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.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.🫧 Which of these is a base? (a) plain water (b) baking soda water (c) orange juice (d) curd
11. 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) a magnet (d) an empty bottle
12. 12.🔍 Which is the odd one out? (a) plain water (b) vinegar (c) tamarind water (d) lemon juice
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a tray for spills (c) baking soda (d) a balloon
14. 14.⚖️ 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
15. 15.🔍 Which is the odd one out? (a) baking soda water (b) lemon juice (c) tamarind water (d) vinegar
16. 16.🛟 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
17. 17.🎈 Why does the balloon blow up? (a) outside air gets in (b) gas is made inside (c) the bottle shrinks (d) vinegar is hot
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a balloon (c) a tray for spills (d) a seed
19. 19.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) the balloon bursts (c) it turns to honey (d) a huge eruption
20. 20.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it grows bigger (c) it turns blue (d) it shrinks
21. 21.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a mirror (c) baking soda (d) a tray for spills
22. 22.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
23. 23.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
24. 24.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the same bottle
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
27. 27.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it glows in the dark (c) lots of fizzy bubbles (d) it turns to ice
28. 28.🫧 Which of these is an acid? (a) sugar water (b) plain water (c) soap solution (d) vinegar
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the kind of balloon (b) size of the balloon (c) spoons of baking soda
30. 30.⚖️ 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 keep it the same (c) we measure it
31. 31.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
32. 32.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a seed (c) an empty bottle (d) baking soda
33. 33.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a funnel or spoon (c) vinegar (d) a comb
35. 35.⚖️ 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
36. 36.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a comb (c) a balloon (d) vinegar
37. 37.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
38. 38.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a seed (c) a balloon (d) a comb
39. 39.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they freeze (c) they react (d) they become magnets
40. 40.⚖️ 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) spoons of baking soda (c) the kind of balloon (d) the same bottle

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