Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 48 · 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) curd (b) baking soda water (c) orange juice (d) vinegar
2. 2.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) an empty bottle (c) baking soda (d) a balloon
3. 3.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a tray for spills (c) a comb (d) baking soda
4. 4.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
5. 5.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) helium (c) carbon dioxide (d) oxygen
6. 6.📘 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
7. 7.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) lemon juice
8. 8.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
9. 9.🫧 Which of these is a base? (a) lemon juice (b) vinegar (c) soap solution (d) plain water
10. 10.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
11. 11.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
12. 12.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) it glows in the dark (c) it turns to ice (d) nothing at all
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) True (b) False
14. 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a balloon (c) a magnet (d) baking soda
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) True (b) False
16. 16.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) there is no change (d) it shrinks
17. 17.⚖️ 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 amount of vinegar (c) spoons of baking soda (d) the kind of balloon
18. 18.🧺 Which of these is not needed for the fizzy balloon? (a) a battery cell (b) baking soda (c) a funnel or spoon (d) a balloon
19. 19.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
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) False (b) True
21. 21.🧺 Which of these is not needed for the fizzy balloon? (a) a mirror (b) an empty bottle (c) baking soda (d) a balloon
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) True (b) False
23. 23.🛟 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
24. 24.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
25. 25.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) it turns to honey (c) a huge eruption (d) the balloon bursts
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
29. 29.True or false: baking soda water is a base. (a) False (b) True
30. 30.⚖️ 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
31. 31.🫧 Which of these is neutral? (a) salt water (b) lemon juice (c) soap solution (d) curd
32. 32.🔍 Which is the odd one out? (a) detergent water (b) vinegar (c) tamarind water (d) lemon juice
33. 33.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) a tray for spills (c) an empty bottle (d) a balloon
34. 34.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) gas is made inside (c) outside air gets in (d) vinegar is hot
35. 35.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) it is only melting (c) no, nothing changes (d) yes, a new gas forms
36. 36.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) shake it near your face (d) put it in your mouth
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.True or false: vinegar is neutral. (a) False (b) True
40. 40.True or false: tamarind water is a base. (a) True (b) False

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