Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 175 · 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.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) a funnel or spoon (c) baking soda (d) an empty bottle
2. 2.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) vinegar (c) a comb (d) a seed
3. 3.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
4. 4.⚖️ 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
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the amount of vinegar (b) the kind of balloon (c) the same bottle (d) spoons of baking soda
6. 6.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
7. 7.⚖️ 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) False (b) True
8. 8.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) put it in your mouth (d) shake it near your face
9. 9.⚖️ 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
10. 10.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the bottle got tired (c) the balloon got cold (d) the gas froze
11. 11.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
12. 12.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a magnet (c) sugar (d) a balloon
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a mirror (c) a balloon (d) baking soda
16. 16.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
17. 17.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) the bottle shrinks (d) outside air gets in
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we measure it (c) we change it
19. 19.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) True (b) False
21. 21.🫧 Which of these is an acid? (a) salt water (b) baking soda water (c) orange juice (d) plain water
22. 22.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
23. 23.🫧 Which of these is neutral? (a) orange juice (b) sugar water (c) tamarind water (d) vinegar
24. 24.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
25. 25.🔍 Which is the odd one out? (a) sugar water (b) orange juice (c) vinegar (d) lemon juice
26. 26.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only melting (c) it is only dissolving (d) yes, a new gas forms
27. 27.🫧 Is curd an acid, a base or neutral? (a) an acid (b) neutral (c) a base
28. 28.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
29. 29.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) the balloon bursts (c) a huge eruption (d) very little fizzing
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) the amount of vinegar (c) the kind of balloon (d) size of the balloon
31. 31.⚖️ 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
32. 32.🔍 Which is the odd one out? (a) curd (b) vinegar (c) lemon juice (d) detergent water
33. 33.⚖️ 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
34. 34.🔍 Which is the odd one out? (a) detergent water (b) plain water (c) soap solution (d) baking soda water
35. 35.🔍 Which is the odd one out? (a) detergent water (b) salt water (c) soap solution (d) baking soda water
36. 36.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) an empty bottle (c) a balloon (d) baking soda
37. 37.True or false: vinegar is not needed for the fizzy balloon. (a) True (b) False
38. 38.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a tray for spills (c) a balloon (d) a magnet
39. 39.True or false: vinegar is neutral. (a) False (b) True
40. 40.🛟 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

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