Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 779 · 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.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) no, nothing changes (c) it is only melting (d) yes, a new gas forms
2. 2.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) curd (d) salt water
3. 3.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) put it in your mouth (c) shake it near your face (d) keep it away from eyes
4. 4.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
5. 5.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
6. 6.🫧 Which of these is neutral? (a) orange juice (b) vinegar (c) tamarind water (d) plain water
7. 7.⚖️ 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 change it (c) we keep it the same
8. 8.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) an acid (c) a base
9. 9.True or false: a tray for spills is needed for the fizzy balloon. (a) True (b) False
10. 10.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) outside air gets in (d) the bottle shrinks
11. 11.True or false: sugar water is neutral. (a) False (b) True
12. 12.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
13. 13.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a tray for spills (c) a seed (d) a comb
14. 14.⚖️ 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
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) True (b) False
16. 16.True or false: lemon juice is an acid. (a) False (b) True
17. 17.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) rinse with clean water (d) add baking soda
18. 18.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) baking soda (c) a seed (d) a comb
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) an empty bottle (d) a seed
20. 20.True or false: baking soda water is neutral. (a) False (b) True
21. 21.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
22. 22.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) a huge eruption (c) it turns to honey (d) the balloon bursts
23. 23.🔍 Which is the odd one out? (a) lemon juice (b) vinegar (c) detergent water (d) tamarind water
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) the amount of vinegar (c) spoons of baking soda (d) the kind of balloon
25. 25.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
26. 26.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
27. 27.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
28. 28.True or false: vinegar is a base. (a) True (b) False
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) spoons of baking soda (c) the same bottle (d) the amount of vinegar
30. 30.🧺 Which of these is needed for the fizzy balloon? (a) a funnel or spoon (b) a magnet (c) a seed (d) a comb
31. 31.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a mirror (c) a magnet (d) an empty bottle
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we change it (c) we measure it
33. 33.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a battery cell (c) vinegar (d) a seed
34. 34.🫧 Which of these is neutral? (a) orange juice (b) sugar water (c) baking soda water (d) vinegar
35. 35.🫧 Which of these is an acid? (a) baking soda water (b) salt water (c) tamarind water (d) soap solution
36. 36.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) a tray for spills (c) vinegar (d) an empty bottle
37. 37.True or false: salt water is neutral. (a) False (b) True
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) the amount of vinegar (c) spoons of baking soda
39. 39.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False
40. 40.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) it glows in the dark (c) nothing at all (d) lots of fizzy bubbles

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