Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 376 · 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.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the gas froze (d) the bottle got tired
2. 2.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) an empty bottle (c) a tray for spills (d) a balloon
3. 3.🫧 Which of these is a base? (a) orange juice (b) lemon juice (c) curd (d) baking soda water
4. 4.True or false: plain water is a base. (a) True (b) False
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) a tray for spills (c) an empty bottle (d) a funnel or spoon
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) plain water (b) curd (c) vinegar (d) orange juice
8. 8.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) it turns to ice (c) it glows in the dark (d) nothing at all
9. 9.🔮 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 shrinks (d) it grows bigger
10. 10.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) an acid (c) a base
11. 11.🫧 Which of these is neutral? (a) salt water (b) curd (c) baking soda water (d) vinegar
12. 12.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
13. 13.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a tray for spills (c) a comb (d) a funnel or spoon
14. 14.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they become magnets (c) they freeze (d) they float apart
15. 15.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
16. 16.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) put it in your mouth (c) keep it away from eyes (d) shake it near your face
17. 17.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
18. 18.True or false: salt water is neutral. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) plain water (d) vinegar
20. 20.True or false: lemon juice is a base. (a) False (b) True
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) True (b) False
22. 22.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
23. 23.⚖️ 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 measure it (c) we change it
24. 24.🫧 Which of these is a base? (a) orange juice (b) salt water (c) detergent water (d) vinegar
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) curd (b) vinegar (c) lemon juice (d) salt water
27. 27.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) no, nothing changes (c) yes, a new gas forms (d) it is only melting
28. 28.⚖️ 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
29. 29.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
30. 30.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
31. 31.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
32. 32.⚖️ 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) spoons of baking soda (c) the kind of balloon (d) the same bottle
33. 33.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) plain water (d) baking soda water
34. 34.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) the balloon bursts (c) a huge eruption (d) it turns to honey
35. 35.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a tray for spills (c) an empty bottle (d) a battery cell
36. 36.⚖️ 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 change it (c) we keep it the same
37. 37.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
38. 38.⚖️ 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 same bottle
39. 39.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
40. 40.True or false: salt water is an acid. (a) True (b) False

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