Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 275 · 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) sugar water (b) plain water (c) salt water (d) orange juice
2. 2.⚖️ 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) False (b) True
3. 3.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) False (b) True
4. 4.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) it is only dissolving (c) yes, a new gas forms (d) no, nothing changes
5. 5.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) ignore it (c) rub it hard (d) add baking soda
6. 6.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a magnet (c) an empty bottle (d) a mirror
7. 7.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
8. 8.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) spoons of baking soda (c) size of the balloon (d) the same bottle
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) False (b) True
11. 11.🫧 Which of these is an acid? (a) salt water (b) baking soda water (c) plain water (d) tamarind water
12. 12.⚖️ 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
13. 13.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) sugar (c) a comb (d) baking soda
14. 14.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
15. 15.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) there is no change (d) it shrinks
16. 16.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) vinegar (c) a magnet (d) a mirror
17. 17.🎈 Why does the balloon blow up? (a) vinegar is hot (b) the bottle shrinks (c) outside air gets in (d) gas is made inside
18. 18.True or false: a battery cell is not needed for the fizzy balloon. (a) True (b) False
19. 19.⚖️ 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
20. 20.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) shake it near your face (c) keep it away from eyes (d) seal it in a glass jar
21. 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) an empty bottle (c) a battery cell (d) a tray for spills
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we keep it the same (c) we change it
23. 23.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) a base (c) neutral
24. 24.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
25. 25.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
26. 26.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) the bottle got tired (d) an ingredient ran out
27. 27.🫧 Which of these is a base? (a) plain water (b) orange juice (c) tamarind water (d) baking soda water
28. 28.🔮 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
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) the amount of vinegar (c) the same bottle (d) size of the balloon
30. 30.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) baking soda (c) a magnet (d) vinegar
31. 31.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
32. 32.True or false: baking soda water is an acid. (a) False (b) True
33. 33.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) False (b) True
35. 35.🧺 Which of these is needed for the fizzy balloon? (a) a balloon (b) sugar (c) a magnet (d) a mirror
36. 36.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) baking soda (c) vinegar (d) a mirror
37. 37.🔍 Which is the odd one out? (a) lemon juice (b) tamarind water (c) salt water (d) vinegar
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) the amount of vinegar (c) spoons of baking soda
39. 39.🔍 Which is the odd one out? (a) detergent water (b) curd (c) lemon juice (d) orange juice
40. 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) False (b) True

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