Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 981 · 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 melting (b) yes, a new gas forms (c) it is only dissolving (d) no, nothing changes
2. 2.🎈 Why does the balloon blow up? (a) gas is made inside (b) the bottle shrinks (c) outside air gets in (d) vinegar is hot
3. 3.🔍 Which is the odd one out? (a) soap solution (b) lemon juice (c) baking soda water (d) detergent water
4. 4.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) an acid (c) a base
5. 5.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a comb (c) a funnel or spoon (d) baking soda
6. 6.⚖️ 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
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) True (b) False
8. 8.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) it turns to honey (c) a huge eruption (d) very little fizzing
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) an empty bottle (c) a balloon (d) a funnel or spoon
10. 10.🔍 Which is the odd one out? (a) lemon juice (b) curd (c) vinegar (d) plain water
11. 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) a battery cell (d) vinegar
12. 12.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) vinegar (c) a seed (d) baking soda
13. 13.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) lots of fizzy bubbles (c) it turns to ice (d) nothing at all
14. 14.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a battery cell (c) a seed (d) a tray for spills
15. 15.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a balloon (c) baking soda (d) a mirror
16. 16.🫧 Which of these is neutral? (a) soap solution (b) detergent water (c) curd (d) sugar water
17. 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) a funnel or spoon (c) baking soda (d) a tray for spills
19. 19.True or false: vinegar is not needed for the fizzy balloon. (a) True (b) False
20. 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a funnel or spoon (c) a balloon (d) sugar
21. 21.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
22. 22.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
23. 23.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) sugar water
25. 25.🫧 Is curd an acid, a base or neutral? (a) an acid (b) a base (c) neutral
26. 26.True or false: tamarind water is a base. (a) False (b) True
27. 27.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it grows bigger (c) it turns blue (d) there is no change
28. 28.True or false: a battery cell is needed for the fizzy balloon. (a) True (b) False
29. 29.⚖️ 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) False (b) True
30. 30.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
31. 31.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) add baking soda (d) rinse with clean water
32. 32.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a funnel or spoon (c) a battery cell (d) a mirror
33. 33.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
34. 34.🧺 Which of these is needed for the fizzy balloon? (a) an empty bottle (b) sugar (c) a seed (d) a battery cell
35. 35.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
36. 36.⚖️ 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 kind of balloon (d) the same bottle
37. 37.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) the bottle got tired (d) an ingredient ran out
38. 38.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
39. 39.🔍 Which is the odd one out? (a) plain water (b) baking soda water (c) salt water (d) sugar water
40. 40.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed

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