Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 75 · 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 “spoons of baking soda”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the bottle got tired (d) the gas froze
3. 3.⚖️ 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 same bottle (c) spoons of baking soda (d) the kind of balloon
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) True (b) False
5. 5.🔍 Which is the odd one out? (a) lemon juice (b) plain water (c) sugar water (d) salt water
6. 6.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) orange juice (d) plain water
7. 7.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rinse with clean water (c) rub it hard (d) add baking soda
8. 8.True or false: curd is an acid. (a) True (b) False
9. 9.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) the balloon bursts (c) a huge eruption (d) it turns to honey
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) baking soda (c) an empty bottle (d) vinegar
11. 11.True or false: vinegar is neutral. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) salt water (d) detergent water
13. 13.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) sugar (c) an empty bottle (d) a battery cell
14. 14.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) keep it away from eyes (d) shake it near your face
15. 15.⚖️ 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
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda
17. 17.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) outside air gets in (d) gas is made inside
18. 18.True or false: an empty bottle is needed for the fizzy balloon. (a) True (b) False
19. 19.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) yes, a new gas forms (c) no, nothing changes (d) it is only dissolving
20. 20.True or false: orange juice is neutral. (a) True (b) False
21. 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) vinegar (c) a funnel or spoon (d) a tray for spills
22. 22.🫧 Which of these is an acid? (a) soap solution (b) lemon juice (c) baking soda water (d) sugar water
23. 23.⚖️ 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
24. 24.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
25. 25.🫧 Which of these is a base? (a) salt water (b) detergent water (c) curd (d) vinegar
26. 26.True or false: sugar water is neutral. (a) False (b) True
27. 27.🫧 Which of these is an acid? (a) tamarind water (b) plain water (c) detergent water (d) sugar water
28. 28.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) a balloon (d) sugar
29. 29.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
30. 30.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
31. 31.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) vinegar (c) a magnet (d) a mirror
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
33. 33.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
34. 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a funnel or spoon (c) a seed (d) vinegar
35. 35.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
36. 36.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a battery cell (c) a comb (d) baking soda
37. 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) a tray for spills (d) a magnet
38. 38.🫧 Which of these is a base? (a) plain water (b) baking soda water (c) salt water (d) vinegar
39. 39.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) vinegar (c) baking soda (d) an empty bottle
40. 40.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) soap solution (d) plain water

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