Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 671 · 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 do you see when baking soda meets vinegar? (a) it turns to ice (b) it glows in the dark (c) nothing at all (d) lots of fizzy bubbles
2. 2.True or false: baking soda water is neutral. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) curd (b) lemon juice (c) orange juice (d) plain water
4. 4.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
5. 5.🫧 Which of these is an acid? (a) lemon juice (b) salt water (c) plain water (d) sugar water
6. 6.⚖️ 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) size of the balloon (c) spoons of baking soda (d) the same bottle
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we keep it the same (c) we change it
8. 8.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) keep it away from eyes (c) seal it in a glass jar (d) put it in your mouth
9. 9.⚖️ 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
10. 10.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) rinse with clean water (d) add baking soda
11. 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
13. 13.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
14. 14.🔍 Which is the odd one out? (a) vinegar (b) baking soda water (c) soap solution (d) detergent water
15. 15.🫧 Which of these is neutral? (a) plain water (b) baking soda water (c) soap solution (d) orange juice
16. 16.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
17. 17.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they freeze (c) they become magnets (d) they react
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a comb (c) a funnel or spoon (d) an empty bottle
19. 19.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
20. 20.⚖️ 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
21. 21.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a balloon (c) sugar (d) a magnet
22. 22.🔮 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
23. 23.True or false: vinegar is a base. (a) False (b) True
24. 24.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a battery cell (c) a balloon (d) baking soda
25. 25.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
26. 26.⚖️ 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
27. 27.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) helium (c) hydrogen (d) carbon dioxide
28. 28.🔍 Which is the odd one out? (a) lemon juice (b) soap solution (c) tamarind water (d) orange juice
29. 29.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
30. 30.🫧 Which of these is a base? (a) soap solution (b) salt water (c) curd (d) vinegar
31. 31.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a tray for spills (c) a comb (d) baking soda
32. 32.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it grows bigger (c) it shrinks (d) it turns blue
33. 33.🔮 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
34. 34.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) no, nothing changes (c) it is only dissolving (d) it is only melting
35. 35.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) gas is made inside (c) vinegar is hot (d) outside air gets in
36. 36.🫧 Which of these is an acid? (a) baking soda water (b) curd (c) plain water (d) sugar water
37. 37.🫧 Which of these is neutral? (a) lemon juice (b) detergent water (c) curd (d) salt water
38. 38.🫧 Which of these is a base? (a) tamarind water (b) baking soda water (c) vinegar (d) lemon juice
39. 39.⚖️ 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
40. 40.True or false: soap solution is neutral. (a) True (b) False

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