Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 330 · 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 of these is neutral? (a) baking soda water (b) orange juice (c) lemon juice (d) salt water
2. 2.⚖️ 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) size of the balloon (d) spoons of baking soda
3. 3.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they react (c) they freeze (d) they become magnets
4. 4.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a funnel or spoon (c) baking soda (d) a comb
5. 5.True or false: vinegar is an acid. (a) False (b) True
6. 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) an empty bottle (c) a funnel or spoon (d) a comb
7. 7.⚖️ 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 change it (c) we measure it
8. 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a balloon (c) a battery cell (d) vinegar
9. 9.🫧 Which of these is a base? (a) salt water (b) lemon juice (c) tamarind water (d) detergent water
10. 10.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
11. 11.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
12. 12.⚖️ 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
13. 13.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
14. 14.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the balloon got cold (c) the gas froze (d) the bottle got tired
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a funnel or spoon (c) baking soda (d) a balloon
16. 16.🔍 Which is the odd one out? (a) vinegar (b) curd (c) orange juice (d) plain water
17. 17.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) add baking soda (c) rinse with clean water (d) rub it hard
18. 18.🔍 Which is the odd one out? (a) tamarind water (b) curd (c) soap solution (d) lemon juice
19. 19.🔍 Which is the odd one out? (a) detergent water (b) curd (c) vinegar (d) tamarind water
20. 20.🔮 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
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon
22. 22.🫧 Which of these is a base? (a) tamarind water (b) curd (c) orange juice (d) baking soda water
23. 23.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
24. 24.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
25. 25.🫧 Is plain water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
26. 26.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it grows bigger (c) there is no change (d) it turns blue
27. 27.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) keep it away from eyes (c) put it in your mouth (d) seal it in a glass jar
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
29. 29.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
30. 30.🫧 Which of these is neutral? (a) baking soda water (b) curd (c) detergent water (d) sugar water
31. 31.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
32. 32.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
33. 33.🫧 Is vinegar 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? What do we do with “the kind of balloon”? (a) we change it (b) we keep it the same (c) we measure it
35. 35.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) a balloon (c) vinegar (d) an empty bottle
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
38. 38.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) a base (c) an acid
39. 39.📘 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
40. 40.🫧 Is salt water an acid, a base or neutral? (a) a base (b) neutral (c) an acid

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