Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 504 · 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) baking soda (b) a magnet (c) an empty bottle (d) a balloon
2. 2.True or false: a magnet is needed for the fizzy balloon. (a) False (b) True
3. 3.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the gas froze (d) the bottle got tired
4. 4.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they freeze (c) they react (d) they float apart
5. 5.🛟 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
6. 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a funnel or spoon (c) a mirror (d) a tray for spills
7. 7.🔍 Which is the odd one out? (a) sugar water (b) lemon juice (c) salt water (d) plain water
8. 8.True or false: vinegar is not needed for the fizzy balloon. (a) True (b) False
9. 9.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) very little fizzing (c) a huge eruption (d) the balloon bursts
10. 10.🫧 Which of these is an acid? (a) soap solution (b) tamarind water (c) baking soda water (d) detergent water
11. 11.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
12. 12.🧺 Which of these is needed for the fizzy balloon? (a) a balloon (b) a magnet (c) a battery cell (d) a comb
13. 13.⚖️ 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
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) True (b) False
15. 15.True or false: detergent water is a base. (a) False (b) True
16. 16.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) seal it in a glass jar (d) keep it away from eyes
17. 17.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
18. 18.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
19. 19.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it grows bigger (d) it turns blue
20. 20.⚖️ 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
21. 21.🧺 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 battery cell
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we keep it the same (c) we measure it
23. 23.🔍 Which is the odd one out? (a) sugar water (b) tamarind water (c) orange juice (d) curd
24. 24.⚖️ 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
25. 25.⚖️ 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
26. 26.🧺 Which of these is not needed for the fizzy balloon? (a) sugar (b) a balloon (c) baking soda (d) vinegar
27. 27.🔍 Which is the odd one out? (a) curd (b) soap solution (c) vinegar (d) tamarind water
28. 28.⚖️ 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
29. 29.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) baking soda (c) vinegar (d) a tray for spills
31. 31.True or false: tamarind water is a base. (a) True (b) False
32. 32.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) helium (c) hydrogen (d) oxygen
33. 33.🔍 Which is the odd one out? (a) vinegar (b) detergent water (c) baking soda water (d) soap solution
34. 34.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
35. 35.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) baking soda (c) sugar (d) vinegar
36. 36.🔍 Which is the odd one out? (a) orange juice (b) lemon juice (c) vinegar (d) salt water
37. 37.⚖️ 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) spoons of baking soda (c) size of the balloon (d) the same bottle
38. 38.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) vinegar (c) a comb (d) a magnet
39. 39.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
40. 40.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a comb (c) a funnel or spoon (d) sugar

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