Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 542 · 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.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) outside air gets in (d) the bottle shrinks
2. 2.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
3. 3.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it shrinks (c) there is no change (d) it grows bigger
4. 4.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a magnet (c) baking soda (d) a balloon
5. 5.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only melting (c) it is only dissolving (d) yes, a new gas forms
6. 6.True or false: vinegar is neutral. (a) True (b) False
7. 7.⚖️ 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
8. 8.⚖️ 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) size of the balloon (c) spoons of baking soda (d) the kind of balloon
9. 9.🫧 Which of these is an acid? (a) soap solution (b) lemon juice (c) detergent water (d) plain water
10. 10.🫧 Which of these is a base? (a) detergent water (b) orange juice (c) tamarind water (d) vinegar
11. 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.⚖️ 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 measure it (c) we keep it the same
13. 13.🫧 Which of these is neutral? (a) tamarind water (b) curd (c) soap solution (d) salt water
14. 14.🫧 Which of these is a base? (a) plain water (b) tamarind water (c) lemon juice (d) baking soda water
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) spoons of baking soda (c) size of the balloon (d) the amount of vinegar
16. 16.🔍 Which is the odd one out? (a) vinegar (b) soap solution (c) orange juice (d) tamarind water
17. 17.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
18. 18.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
19. 19.⚖️ 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 measure it (c) we keep it the same
20. 20.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) keep it away from eyes (c) seal it in a glass jar (d) put it in your mouth
21. 21.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) sugar (c) baking soda (d) an empty bottle
23. 23.🔍 Which is the odd one out? (a) vinegar (b) orange juice (c) tamarind water (d) baking soda water
24. 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a magnet (c) vinegar (d) a tray for spills
25. 25.True or false: tamarind water is an acid. (a) True (b) False
26. 26.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
27. 27.True or false: a tray for spills is needed for the fizzy balloon. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) plain water (d) detergent water
29. 29.True or false: vinegar is an acid. (a) False (b) True
30. 30.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) it glows in the dark (c) lots of fizzy bubbles (d) nothing at all
31. 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) a tray for spills (c) a funnel or spoon (d) vinegar
32. 32.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they float apart (c) they react (d) they freeze
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) False (b) True
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the kind of balloon (b) size of the balloon (c) spoons of baking soda
35. 35.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) an acid (c) neutral
36. 36.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) oxygen (c) hydrogen (d) carbon dioxide
37. 37.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a funnel or spoon (c) a tray for spills (d) a battery cell
38. 38.🔮 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
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we measure it (c) we keep it the same
40. 40.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed

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