Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 95 · 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.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) the amount of vinegar (c) size of the balloon (d) the kind of balloon
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) True (b) False
3. 3.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) shake it near your face (c) seal it in a glass jar (d) put it in your mouth
4. 4.🔍 Which is the odd one out? (a) sugar water (b) lemon juice (c) salt water (d) plain water
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) baking soda (c) a balloon (d) vinegar
6. 6.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) a balloon (c) an empty bottle (d) a funnel or spoon
8. 8.True or false: a mirror is not needed for the fizzy balloon. (a) True (b) False
9. 9.🫧 Which of these is a base? (a) salt water (b) orange juice (c) lemon juice (d) detergent water
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) True (b) False
11. 11.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) a huge eruption (d) it turns to honey
12. 12.⚖️ 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 keep it the same (c) we measure it
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a mirror (c) baking soda (d) a balloon
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) True (b) False
15. 15.True or false: salt water is a base. (a) True (b) False
16. 16.⚖️ 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
17. 17.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) it is only dissolving (c) yes, a new gas forms (d) no, nothing changes
18. 18.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) curd (b) salt water (c) plain water (d) sugar water
20. 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a tray for spills (c) vinegar (d) sugar
21. 21.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
22. 22.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a battery cell (c) a magnet (d) a mirror
23. 23.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
24. 24.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they float apart (c) they become magnets (d) they freeze
25. 25.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the bottle got tired (c) the gas froze (d) the balloon got cold
26. 26.🫧 Which of these is a base? (a) plain water (b) salt water (c) soap solution (d) vinegar
27. 27.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) rub it hard (c) add baking soda (d) ignore it
28. 28.🔮 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
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the same bottle
32. 32.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
33. 33.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
34. 34.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
35. 35.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) sugar (c) a battery cell (d) an empty bottle
36. 36.True or false: detergent water is a base. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) salt water (d) tamarind water
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 kind of balloon (c) spoons of baking soda
39. 39.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
40. 40.⚖️ 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

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