Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 325 · 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.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
2. 2.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
3. 3.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rinse with clean water (c) add baking soda (d) rub it hard
4. 4.⚖️ 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
5. 5.True or false: lemon juice is neutral. (a) True (b) False
6. 6.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a tray for spills (c) a mirror (d) a magnet
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a seed (c) vinegar (d) baking soda
8. 8.True or false: vinegar is a base. (a) True (b) False
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a funnel or spoon (c) a tray for spills (d) a balloon
10. 10.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
11. 11.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) seal it in a glass jar (c) shake it near your face (d) put it in your mouth
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a magnet (c) a tray for spills (d) vinegar
14. 14.🔍 Which is the odd one out? (a) lemon juice (b) baking soda water (c) orange juice (d) vinegar
15. 15.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) it turns to ice (c) nothing at all (d) lots of fizzy bubbles
16. 16.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
17. 17.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
18. 18.🫧 Which of these is an acid? (a) baking soda water (b) sugar water (c) salt water (d) tamarind water
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we keep it the same (c) we change it
20. 20.🫧 Which of these is neutral? (a) tamarind water (b) detergent water (c) soap solution (d) sugar water
21. 21.True or false: plain water is a base. (a) False (b) True
22. 22.True or false: detergent water is a base. (a) True (b) False
23. 23.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) vinegar (c) a mirror (d) an empty bottle
24. 24.True or false: orange juice is neutral. (a) True (b) False
25. 25.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it shrinks (c) it grows bigger (d) there is no change
26. 26.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the gas froze (c) the bottle got tired (d) the balloon got cold
27. 27.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
28. 28.⚖️ 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) spoons of baking soda (c) the same bottle (d) the kind of balloon
29. 29.🫧 Which of these is a base? (a) salt water (b) curd (c) baking soda water (d) plain water
30. 30.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
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: an empty bottle is needed for the fizzy balloon. (a) False (b) True
33. 33.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
34. 34.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
35. 35.🎈 Why does the balloon blow up? (a) gas is made inside (b) the bottle shrinks (c) vinegar is hot (d) outside air gets in
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) True (b) False
37. 37.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
38. 38.⚖️ 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
39. 39.⚖️ 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
40. 40.🧺 Which of these is needed for the fizzy balloon? (a) an empty bottle (b) a mirror (c) sugar (d) a comb

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