Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 89 · 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 an acid? (a) tamarind water (b) detergent water (c) soap solution (d) salt water
2. 2.⚖️ 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
3. 3.🔮 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
4. 4.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) yes, a new gas forms (c) it is only melting (d) no, nothing changes
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a funnel or spoon (c) an empty bottle (d) a mirror
6. 6.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
7. 7.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a balloon (c) a battery cell (d) a funnel or spoon
8. 8.🫧 Which of these is a base? (a) lemon juice (b) curd (c) orange juice (d) soap solution
9. 9.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
10. 10.🔍 Which is the odd one out? (a) sugar water (b) lemon juice (c) salt water (d) plain water
11. 11.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
12. 12.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
13. 13.True or false: lemon juice is a base. (a) False (b) True
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
15. 15.⚖️ 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 change it (c) we keep it the same
16. 16.🫧 Which of these is a base? (a) sugar water (b) tamarind water (c) plain water (d) baking soda water
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) an empty bottle (c) sugar (d) vinegar
18. 18.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) sugar (c) a comb (d) vinegar
19. 19.True or false: soap solution is an acid. (a) True (b) False
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the same bottle
21. 21.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) it glows in the dark (c) nothing at all (d) lots of fizzy bubbles
22. 22.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
23. 23.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) seal it in a glass jar (d) shake it near your face
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
25. 25.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
26. 26.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) there is no change (d) it shrinks
27. 27.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
28. 28.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) an empty bottle (c) a balloon (d) a battery cell
29. 29.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the amount of vinegar (c) size of the balloon
31. 31.True or false: baking soda water is neutral. (a) False (b) True
32. 32.⚖️ 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 same bottle (c) size of the balloon (d) spoons of baking soda
33. 33.True or false: plain water is neutral. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) plain water (d) soap solution
35. 35.🧺 Which of these is needed for the fizzy balloon? (a) a balloon (b) sugar (c) a magnet (d) a battery cell
36. 36.True or false: soap solution is neutral. (a) True (b) False
37. 37.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) ignore it (c) rub it hard (d) add baking soda
38. 38.🫧 Which of these is an acid? (a) vinegar (b) detergent water (c) soap solution (d) baking soda water
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 measure it (c) we change it
40. 40.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a mirror (c) a seed (d) baking soda

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