Baking Soda and Vinegar Experiment Worksheet

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

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