Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 499 · 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.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
2. 2.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
3. 3.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True
4. 4.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
5. 5.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
6. 6.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it glows in the dark (c) lots of fizzy bubbles (d) it turns to ice
7. 7.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
8. 8.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) baking soda water (b) salt water (c) soap solution (d) detergent water
10. 10.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they float apart (d) they react
11. 11.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) rinse with clean water (d) add baking soda
12. 12.🧺 Which of these is needed for the fizzy balloon? (a) a funnel or spoon (b) a battery cell (c) a seed (d) a magnet
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a seed (c) a balloon (d) an empty bottle
14. 14.🔍 Which is the odd one out? (a) orange juice (b) plain water (c) vinegar (d) lemon juice
15. 15.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) seal it in a glass jar (c) shake it near your face (d) put it in your mouth
16. 16.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) an acid (c) neutral
17. 17.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
18. 18.⚖️ 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 change it (c) we measure it
19. 19.🎈 Why does the balloon blow up? (a) gas is made inside (b) the bottle shrinks (c) vinegar is hot (d) outside air gets in
20. 20.🫧 Is curd an acid, a base or neutral? (a) neutral (b) an acid (c) a base
21. 21.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it turns blue (c) it grows bigger (d) it shrinks
22. 22.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) an ingredient ran out (c) the gas froze (d) the balloon got cold
23. 23.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a comb (c) an empty bottle (d) a tray for spills
24. 24.🔍 Which is the odd one out? (a) curd (b) lemon juice (c) vinegar (d) baking soda water
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 amount of vinegar (c) the same bottle (d) size of the balloon
26. 26.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
27. 27.⚖️ 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
28. 28.🧺 Which of these is needed for the fizzy balloon? (a) an empty bottle (b) a magnet (c) a mirror (d) a battery cell
29. 29.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) vinegar (d) soap solution
30. 30.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) sugar water (d) baking soda water
31. 31.⚖️ 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
32. 32.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) a huge eruption (c) very little fizzing (d) the balloon bursts
33. 33.True or false: tamarind water is an acid. (a) False (b) True
34. 34.⚖️ 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) the same bottle (d) spoons of baking soda
35. 35.⚖️ 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 change it (c) we measure it
36. 36.🔍 Which is the odd one out? (a) lemon juice (b) orange juice (c) vinegar (d) detergent water
37. 37.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
38. 38.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) hydrogen (c) carbon dioxide (d) oxygen
39. 39.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
40. 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a mirror (c) a funnel or spoon (d) a tray for spills

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