Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 628 · 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) sugar water (b) soap solution (c) detergent water (d) baking soda water
2. 2.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
3. 3.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
4. 4.🫧 Which of these is neutral? (a) curd (b) baking soda water (c) orange juice (d) salt water
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) size of the balloon (c) the amount of vinegar (d) the kind of balloon
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.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) the kind of balloon (c) the amount of vinegar (d) the same bottle
8. 8.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) tamarind water
9. 9.🫧 Which of these is a base? (a) lemon juice (b) vinegar (c) sugar water (d) detergent water
10. 10.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) add baking soda (c) rub it hard (d) ignore it
11. 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a balloon (c) a magnet (d) baking soda
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 needed for the fizzy balloon? (a) a seed (b) a mirror (c) a balloon (d) a comb
14. 14.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
15. 15.🧺 Which of these is not needed for the fizzy balloon? (a) a battery cell (b) a funnel or spoon (c) vinegar (d) baking soda
16. 16.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
17. 17.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) an empty bottle (c) a magnet (d) sugar
18. 18.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) an acid (c) a base
19. 19.True or false: sugar water is a base. (a) False (b) True
20. 20.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) hydrogen (c) carbon dioxide (d) helium
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we keep it the same (c) we measure it
22. 22.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a tray for spills (c) a seed (d) an empty bottle
23. 23.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) seal it in a glass jar (d) keep it away from eyes
24. 24.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) it is only melting (c) it is only dissolving (d) no, nothing changes
25. 25.True or false: plain water is an acid. (a) False (b) True
26. 26.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we measure it (c) we change it
28. 28.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) an empty bottle (c) vinegar (d) a tray for spills
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
30. 30.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they become magnets (c) they float apart (d) they freeze
31. 31.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
32. 32.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
33. 33.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) outside air gets in (d) gas is made inside
34. 34.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) sugar (c) a mirror (d) baking soda
35. 35.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
37. 37.True or false: salt water is a base. (a) False (b) True
38. 38.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) it turns to honey (d) a huge eruption
39. 39.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
40. 40.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed

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