Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 840 · 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 of these is not needed for the fizzy balloon? (a) a seed (b) vinegar (c) baking soda (d) an empty bottle
2. 2.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) rub it hard (c) ignore it (d) add baking soda
3. 3.🫧 Which of these is a base? (a) plain water (b) tamarind water (c) baking soda water (d) lemon juice
4. 4.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
5. 5.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) shake it near your face (d) seal it in a glass jar
6. 6.⚖️ 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
7. 7.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a battery cell (c) sugar (d) a funnel or spoon
8. 8.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they become magnets (c) they react (d) they freeze
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
10. 10.⚖️ 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 keep it the same (c) we measure it
11. 11.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) an acid (c) a base
12. 12.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
13. 13.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
14. 14.🫧 Which of these is a base? (a) salt water (b) lemon juice (c) soap solution (d) tamarind water
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a mirror (c) an empty bottle (d) a balloon
16. 16.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) it is only dissolving (c) no, nothing changes (d) yes, a new gas forms
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a balloon (c) a magnet (d) a tray for spills
18. 18.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True
19. 19.True or false: orange juice is a base. (a) True (b) False
20. 20.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) an ingredient ran out (c) the gas froze (d) the balloon got cold
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we change it (c) we measure it
22. 22.🫧 Which of these is an acid? (a) vinegar (b) sugar water (c) plain water (d) salt water
23. 23.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
24. 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a battery cell (c) a funnel or spoon (d) vinegar
25. 25.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
26. 26.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
27. 27.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) it turns to honey (d) very little fizzing
28. 28.🫧 Which of these is an acid? (a) baking soda water (b) plain water (c) soap solution (d) tamarind water
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) the same bottle (c) spoons of baking soda (d) size of the balloon
30. 30.🫧 Is curd an acid, a base or neutral? (a) neutral (b) an acid (c) a base
31. 31.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) an empty bottle (c) a funnel or spoon (d) a battery cell
32. 32.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) there is no change (c) it shrinks (d) it grows bigger
33. 33.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
34. 34.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
35. 35.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) False (b) True
36. 36.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
37. 37.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) orange juice (b) baking soda water (c) soap solution (d) detergent water
39. 39.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) outside air gets in (d) the bottle shrinks
40. 40.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True

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