Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 126 · 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: lemon juice is neutral. (a) True (b) False
3. 3.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
4. 4.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
5. 5.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it shrinks (c) there is no change (d) it grows bigger
6. 6.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a funnel or spoon (c) a magnet (d) a seed
7. 7.🔍 Which is the odd one out? (a) tamarind water (b) sugar water (c) salt water (d) plain water
8. 8.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
9. 9.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) shake it near your face (d) seal it in a glass jar
10. 10.⚖️ 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 keep it the same (c) we change it
11. 11.True or false: tamarind water is neutral. (a) True (b) False
12. 12.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) oxygen (c) hydrogen (d) carbon dioxide
13. 13.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) an acid (c) neutral
14. 14.True or false: a battery cell is not needed for the fizzy balloon. (a) True (b) False
15. 15.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) no, nothing changes (c) it is only melting (d) yes, a new gas forms
16. 16.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
17. 17.🧺 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) a balloon (d) a mirror
18. 18.🔍 Which is the odd one out? (a) plain water (b) detergent water (c) baking soda water (d) soap solution
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a balloon (c) a battery cell (d) baking soda
20. 20.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) an ingredient ran out (c) the balloon got cold (d) the bottle got tired
21. 21.🔍 Which is the odd one out? (a) sugar water (b) soap solution (c) plain water (d) salt water
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a magnet (c) a tray for spills (d) baking soda
23. 23.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they react (c) they float apart (d) they become magnets
24. 24.🎈 Why does the balloon blow up? (a) outside air gets in (b) gas is made inside (c) the bottle shrinks (d) vinegar is hot
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) the same bottle (c) the amount of vinegar (d) size of the balloon
26. 26.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we measure it (c) we keep it the same
29. 29.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a tray for spills (c) vinegar (d) a seed
31. 31.True or false: salt water is neutral. (a) True (b) False
32. 32.⚖️ 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
33. 33.⚖️ 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
34. 34.🫧 Which of these is a base? (a) vinegar (b) tamarind water (c) curd (d) soap solution
35. 35.True or false: sugar water is neutral. (a) True (b) False
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the same bottle (b) the kind of balloon (c) spoons of baking soda (d) the amount of vinegar
37. 37.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) an empty bottle (c) a battery cell (d) a balloon
38. 38.True or false: plain water is neutral. (a) True (b) False
39. 39.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) add baking soda (c) rub it hard (d) ignore it
40. 40.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) sugar (c) a tray for spills (d) a mirror

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