Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 818 · 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) no, nothing changes (b) it is only dissolving (c) yes, a new gas forms (d) it is only melting
2. 2.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) a huge eruption (c) the balloon bursts (d) it turns to honey
3. 3.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) vinegar (c) a seed (d) sugar
4. 4.⚖️ 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 same bottle (c) spoons of baking soda
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) False (b) True
6. 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) a balloon (d) a comb
7. 7.⚖️ 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
8. 8.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
9. 9.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a balloon (c) vinegar (d) a comb
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) an empty bottle (c) a tray for spills (d) a mirror
11. 11.⚖️ 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
12. 12.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) nothing at all (c) lots of fizzy bubbles (d) it turns to ice
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) a tray for spills (c) a balloon (d) an empty bottle
14. 14.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
15. 15.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a balloon (c) a magnet (d) baking soda
16. 16.🛟 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
17. 17.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a funnel or spoon (c) vinegar (d) a mirror
18. 18.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
19. 19.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it turns blue (d) it grows bigger
20. 20.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) an empty bottle (c) a battery cell (d) vinegar
21. 21.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the gas froze (c) the bottle got tired (d) an ingredient ran out
22. 22.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) the bottle shrinks (d) gas is made inside
23. 23.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
24. 24.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) detergent water (d) salt water
25. 25.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
26. 26.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) size of the balloon (c) the amount of vinegar (d) the same bottle
28. 28.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) curd (d) detergent water
29. 29.True or false: tamarind water is an acid. (a) True (b) False
30. 30.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
31. 31.⚖️ 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
32. 32.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
33. 33.🛟 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
34. 34.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
35. 35.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) a tray for spills (c) an empty bottle (d) baking soda
36. 36.⚖️ 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) the kind of balloon (c) spoons of baking soda (d) size of the balloon
37. 37.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a magnet (c) a mirror (d) baking soda
38. 38.True or false: vinegar is not needed for the fizzy balloon. (a) True (b) False
39. 39.True or false: baking soda water is an acid. (a) False (b) True
40. 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we keep it the same (c) we change it

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