Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 370 · 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) salt water (c) plain water (d) sugar water
2. 2.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) very little fizzing (c) the balloon bursts (d) a huge eruption
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a funnel or spoon (c) a balloon (d) a mirror
4. 4.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) salt water
5. 5.⚖️ 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) False (b) True
6. 6.⚖️ 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
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a battery cell (c) a balloon (d) an empty bottle
8. 8.🔮 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
9. 9.True or false: tamarind water is an acid. (a) True (b) False
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) vinegar (c) an empty bottle (d) baking soda
11. 11.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) baking soda (c) a mirror (d) a magnet
12. 12.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it glows in the dark (c) it turns to ice (d) lots of fizzy bubbles
13. 13.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) hydrogen (c) oxygen (d) carbon dioxide
14. 14.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
15. 15.🫧 Which of these is neutral? (a) tamarind water (b) orange juice (c) salt water (d) baking soda water
16. 16.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) shake it near your face (c) seal it in a glass jar (d) put it in your mouth
17. 17.🫧 Which of these is neutral? (a) plain water (b) vinegar (c) detergent water (d) soap solution
18. 18.True or false: detergent water is neutral. (a) True (b) False
19. 19.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True
20. 20.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they float apart (c) they become magnets (d) they freeze
21. 21.⚖️ 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
22. 22.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
23. 23.🧺 Which of these is not needed for the fizzy balloon? (a) a mirror (b) a funnel or spoon (c) a tray for spills (d) vinegar
24. 24.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
25. 25.True or false: curd is an acid. (a) True (b) False
26. 26.⚖️ 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
27. 27.🔍 Which is the odd one out? (a) plain water (b) salt water (c) lemon juice (d) sugar water
28. 28.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) an empty bottle (c) a magnet (d) a tray for spills
29. 29.⚖️ 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 same bottle (c) the kind of balloon (d) spoons of baking soda
30. 30.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) neutral (c) a base
31. 31.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
32. 32.🔮 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
33. 33.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
34. 34.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
35. 35.⚖️ 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) size of the balloon
36. 36.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
37. 37.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) sugar (c) a magnet (d) a tray for spills
38. 38.True or false: soap solution is an acid. (a) False (b) True
39. 39.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
40. 40.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base

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