Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 920 · 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.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) very little fizzing (c) the balloon bursts (d) it turns to honey
2. 2.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
3. 3.⚖️ 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
4. 4.🫧 Which of these is a base? (a) plain water (b) salt water (c) tamarind water (d) detergent water
5. 5.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a tray for spills (c) a mirror (d) a funnel or spoon
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) the amount of vinegar (c) the kind of balloon (d) spoons of baking soda
7. 7.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
8. 8.🫧 Which of these is a base? (a) plain water (b) soap solution (c) sugar water (d) lemon juice
9. 9.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) rinse with clean water (d) ignore it
10. 10.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
11. 11.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
12. 12.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) an ingredient ran out (c) the bottle got tired (d) the balloon got cold
13. 13.🔮 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
14. 14.True or false: plain water is an acid. (a) True (b) False
15. 15.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
16. 16.🔍 Which is the odd one out? (a) soap solution (b) salt water (c) sugar water (d) plain water
17. 17.True or false: orange juice is an acid. (a) True (b) False
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the kind of balloon (b) size of the balloon (c) spoons of baking soda
19. 19.🧺 Which of these is needed for the fizzy balloon? (a) an empty bottle (b) a comb (c) a battery cell (d) sugar
20. 20.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
21. 21.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) it is only melting (c) it is only dissolving (d) no, nothing changes
22. 22.True or false: curd is an acid. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) lemon juice (b) sugar water (c) plain water (d) salt water
24. 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a magnet (c) vinegar (d) baking soda
25. 25.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) plain water (d) detergent water
26. 26.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) sugar (c) a battery cell (d) a funnel or spoon
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) orange juice (b) vinegar (c) curd (d) salt water
30. 30.📘 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
31. 31.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
32. 32.True or false: vinegar is not needed for the fizzy balloon. (a) True (b) False
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the amount of vinegar
34. 34.True or false: sugar is needed for the fizzy balloon. (a) False (b) True
35. 35.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) a funnel or spoon (c) vinegar (d) baking soda
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) False (b) True
37. 37.🧺 Which of these is not needed for the fizzy balloon? (a) sugar (b) vinegar (c) an empty bottle (d) baking soda
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) baking soda (c) a funnel or spoon (d) a battery cell
39. 39.⚖️ 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
40. 40.⚖️ 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

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