Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 486 · 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 tray for spills (b) an empty bottle (c) a seed (d) vinegar
2. 2.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a mirror (c) an empty bottle (d) sugar
3. 3.⚖️ 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
4. 4.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
5. 5.🫧 Which of these is a base? (a) sugar water (b) plain water (c) detergent water (d) salt water
6. 6.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
8. 8.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
9. 9.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
10. 10.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
11. 11.🫧 Which of these is a base? (a) soap solution (b) tamarind water (c) lemon juice (d) sugar water
12. 12.🫧 Which of these is neutral? (a) orange juice (b) vinegar (c) sugar water (d) soap solution
13. 13.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
14. 14.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) it shrinks (d) there is no change
15. 15.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) lots of fizzy bubbles (c) nothing at all (d) it glows in the dark
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) True (b) False
17. 17.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
18. 18.⚖️ 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 change it (c) we measure it
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 change it (c) we keep it the same
20. 20.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they freeze (c) they float apart (d) they react
21. 21.🫧 Which of these is an acid? (a) tamarind water (b) salt water (c) detergent water (d) sugar water
22. 22.True or false: orange juice is a base. (a) True (b) False
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) the same bottle (c) spoons of baking soda (d) the kind of balloon
24. 24.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a battery cell (c) a balloon (d) a comb
25. 25.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True
26. 26.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a balloon (c) a magnet (d) a funnel or spoon
27. 27.🫧 Which of these is neutral? (a) vinegar (b) curd (c) detergent water (d) salt water
28. 28.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the bottle got tired (c) the balloon got cold (d) the gas froze
29. 29.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) add baking soda (c) ignore it (d) rinse with clean water
30. 30.True or false: a mirror is not needed for the fizzy balloon. (a) True (b) False
31. 31.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) put it in your mouth (c) shake it near your face (d) keep it away from eyes
32. 32.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
33. 33.🔍 Which is the odd one out? (a) tamarind water (b) soap solution (c) curd (d) lemon juice
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) vinegar (c) an empty bottle (d) a funnel or spoon
35. 35.⚖️ 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
36. 36.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) a huge eruption (c) very little fizzing (d) it turns to honey
37. 37.🫧 Which of these is an acid? (a) baking soda water (b) lemon juice (c) soap solution (d) sugar water
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) a funnel or spoon (d) a seed
39. 39.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) a funnel or spoon (c) a tray for spills (d) baking soda
40. 40.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a magnet (c) a funnel or spoon (d) sugar

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