Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 850 · 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) detergent water (b) baking soda water (c) plain water (d) soap solution
2. 2.🧺 Which of these is not needed for the fizzy balloon? (a) a battery cell (b) a funnel or spoon (c) a balloon (d) baking soda
3. 3.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) it turns to ice (c) nothing at all (d) lots of fizzy bubbles
4. 4.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a mirror (c) a tray for spills (d) vinegar
5. 5.⚖️ 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
6. 6.🫧 Which of these is an acid? (a) salt water (b) baking soda water (c) soap solution (d) lemon juice
7. 7.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
8. 8.True or false: soap solution is a base. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) lemon juice (b) baking soda water (c) vinegar (d) curd
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) spoons of baking soda (c) the amount of vinegar (d) the kind of balloon
11. 11.⚖️ 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 measure it (c) we change it
12. 12.🫧 Which of these is neutral? (a) vinegar (b) tamarind water (c) plain water (d) soap solution
13. 13.⚖️ 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 same bottle
14. 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) baking soda (c) vinegar (d) a tray for spills
15. 15.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
17. 17.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it shrinks (c) it grows bigger (d) there is no change
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we keep it the same (c) we change it
19. 19.True or false: salt water is neutral. (a) True (b) False
20. 20.True or false: a tray for spills is needed for the fizzy balloon. (a) True (b) False
21. 21.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
22. 22.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
23. 23.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the gas froze (c) the bottle got tired (d) the balloon got cold
24. 24.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) carbon dioxide (c) helium (d) hydrogen
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) a battery cell (d) a funnel or spoon
26. 26.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) a huge eruption (c) it turns to honey (d) the balloon bursts
27. 27.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
28. 28.🫧 Which of these is an acid? (a) sugar water (b) baking soda water (c) detergent water (d) curd
29. 29.🔍 Which is the odd one out? (a) detergent water (b) orange juice (c) vinegar (d) lemon juice
30. 30.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
31. 31.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they float apart (c) they react (d) they become magnets
32. 32.True or false: plain water is neutral. (a) False (b) True
33. 33.⚖️ 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
34. 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a comb (c) a tray for spills (d) an empty bottle
35. 35.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
36. 36.🛟 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
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) the same bottle (d) size of the balloon
38. 38.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
39. 39.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a seed (c) a balloon (d) a tray for spills
40. 40.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) ignore it (d) rinse with clean water

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