Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 516 · 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.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) baking soda (c) a seed (d) an empty bottle
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we keep it the same (c) we change it
3. 3.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) lemon juice
4. 4.True or false: curd is an acid. (a) False (b) True
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) the kind of balloon (c) spoons of baking soda (d) size of the balloon
6. 6.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) the bottle shrinks (d) gas is made inside
7. 7.🧺 Which of these is needed for the fizzy balloon? (a) an empty bottle (b) sugar (c) a magnet (d) a mirror
8. 8.True or false: plain water is a base. (a) False (b) True
9. 9.🔮 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
10. 10.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they become magnets (c) they react (d) they freeze
11. 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the same bottle (b) spoons of baking soda (c) size of the balloon
12. 12.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
13. 13.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
14. 14.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) tamarind water (d) plain water
15. 15.⚖️ 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
16. 16.🫧 Which of these is a base? (a) lemon juice (b) vinegar (c) baking soda water (d) tamarind water
17. 17.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
18. 18.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) True (b) False
20. 20.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a balloon (c) a seed (d) a tray for spills
21. 21.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
22. 22.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) a mirror (c) a battery cell (d) a magnet
23. 23.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) the balloon bursts (c) it turns to honey (d) a huge eruption
24. 24.🫧 Which of these is a base? (a) curd (b) soap solution (c) lemon juice (d) salt water
25. 25.⚖️ 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
26. 26.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) it turns to ice (c) nothing at all (d) lots of fizzy bubbles
27. 27.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
28. 28.True or false: baking soda water is neutral. (a) True (b) False
29. 29.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it shrinks (c) it turns blue (d) there is no change
30. 30.True or false: a funnel or spoon is needed for the fizzy balloon. (a) True (b) False
31. 31.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) orange juice (b) lemon juice (c) curd (d) soap solution
33. 33.⚖️ 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
34. 34.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.🔍 Which is the odd one out? (a) curd (b) sugar water (c) lemon juice (d) vinegar
37. 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) vinegar (d) a magnet
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a tray for spills (c) vinegar (d) a comb
39. 39.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
40. 40.True or false: vinegar is a base. (a) False (b) True

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