Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 92 · 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.⚖️ 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
2. 2.🫧 Which of these is a base? (a) plain water (b) detergent water (c) lemon juice (d) salt water
3. 3.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a seed (c) baking soda (d) a comb
4. 4.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) an ingredient ran out (d) the bottle got tired
5. 5.🫧 Which of these is neutral? (a) baking soda water (b) curd (c) detergent water (d) salt water
6. 6.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) an acid (c) neutral
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) an empty bottle (c) baking soda (d) sugar
8. 8.⚖️ 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
9. 9.True or false: sugar is needed for the fizzy balloon. (a) False (b) True
10. 10.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) helium (c) carbon dioxide (d) oxygen
11. 11.⚖️ 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
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) True (b) False
13. 13.🫧 Which of these is neutral? (a) plain water (b) baking soda water (c) detergent water (d) soap solution
14. 14.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) seal it in a glass jar (c) put it in your mouth (d) shake it near your face
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the kind of balloon (b) spoons of baking soda (c) the amount of vinegar (d) the same bottle
16. 16.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) a base (c) neutral
17. 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) size of the balloon (c) the same bottle (d) spoons of baking soda
18. 18.🔍 Which is the odd one out? (a) salt water (b) lemon juice (c) plain water (d) sugar water
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a balloon (c) a comb (d) vinegar
20. 20.⚖️ 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) False (b) True
21. 21.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
22. 22.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) the balloon bursts (c) a huge eruption (d) very little fizzing
23. 23.🔍 Which is the odd one out? (a) baking soda water (b) plain water (c) soap solution (d) detergent water
24. 24.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) lots of fizzy bubbles (c) nothing at all (d) it turns to ice
25. 25.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a seed (c) a balloon (d) a funnel or spoon
26. 26.🔍 Which is the odd one out? (a) soap solution (b) curd (c) baking soda water (d) detergent water
27. 27.True or false: vinegar is a base. (a) True (b) False
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we change it (b) we measure it (c) we keep it the same
29. 29.🔮 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
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we keep it the same (c) we measure it
31. 31.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
32. 32.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
33. 33.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
34. 34.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they float apart (c) they freeze (d) they become magnets
35. 35.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
36. 36.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
37. 37.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a funnel or spoon (c) a battery cell (d) a balloon
39. 39.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) gas is made inside (d) the bottle shrinks
40. 40.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True

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