Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 148 · 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 is the odd one out? (a) vinegar (b) sugar water (c) plain water (d) salt water
2. 2.🔮 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
3. 3.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) vinegar (c) sugar (d) a seed
4. 4.⚖️ 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) size of the balloon (c) spoons of baking soda (d) the same bottle
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) vinegar (c) a funnel or spoon (d) a comb
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
8. 8.True or false: sugar is needed for the fizzy balloon. (a) False (b) True
9. 9.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
10. 10.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it turns blue (c) there is no change (d) it grows bigger
11. 11.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
12. 12.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) vinegar (c) baking soda (d) a magnet
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) True (b) False
14. 14.⚖️ 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
15. 15.True or false: curd is a base. (a) True (b) False
16. 16.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
17. 17.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) vinegar (c) an empty bottle (d) a comb
18. 18.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) yes, a new gas forms (c) it is only melting (d) it is only dissolving
19. 19.⚖️ 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
20. 20.⚖️ 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
21. 21.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) rinse with clean water (d) ignore it
22. 22.⚖️ 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
23. 23.🫧 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
24. 24.🫧 Which of these is an acid? (a) sugar water (b) salt water (c) detergent water (d) tamarind water
25. 25.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
26. 26.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) a balloon (c) an empty bottle (d) baking soda
27. 27.True or false: a mirror is 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 what we measure? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon (d) the kind of balloon
29. 29.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
30. 30.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
31. 31.🔮 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
32. 32.🫧 Which of these is a base? (a) lemon juice (b) vinegar (c) soap solution (d) tamarind water
33. 33.🔍 Which is the odd one out? (a) orange juice (b) lemon juice (c) curd (d) sugar water
34. 34.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False
35. 35.True or false: sugar is not needed for the fizzy balloon. (a) True (b) False
36. 36.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) seal it in a glass jar (c) shake it near your face (d) put it in your mouth
37. 37.True or false: baking soda water is a base. (a) False (b) True
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a funnel or spoon (c) a battery cell (d) baking soda
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) True (b) False
40. 40.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) outside air gets in (c) gas is made inside (d) vinegar is hot

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