Baking Soda and Vinegar Experiment Worksheet

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

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