Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 907 · 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.🫧 Is curd an acid, a base or neutral? (a) an acid (b) a base (c) neutral
2. 2.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) an ingredient ran out (c) the balloon got cold (d) the bottle got tired
3. 3.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
4. 4.🧺 Which of these is needed for the fizzy balloon? (a) an empty bottle (b) a seed (c) sugar (d) a comb
5. 5.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) shake it near your face (d) put it in your mouth
6. 6.⚖️ 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
7. 7.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
8. 8.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
9. 9.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) tamarind water (d) plain water
10. 10.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a seed (c) an empty bottle (d) baking soda
11. 11.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
12. 12.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
13. 13.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) it turns to honey (c) a huge eruption (d) the balloon bursts
14. 14.🔍 Which is the odd one out? (a) curd (b) orange juice (c) tamarind water (d) plain water
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a tray for spills (c) a funnel or spoon (d) a magnet
16. 16.🫧 Which of these is an acid? (a) sugar water (b) salt water (c) detergent water (d) orange juice
17. 17.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they freeze (c) they react (d) they float apart
18. 18.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) outside air gets in (d) the bottle shrinks
19. 19.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
20. 20.True or false: vinegar is a base. (a) False (b) True
21. 21.⚖️ 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
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a seed (c) a tray for spills (d) a balloon
23. 23.🔍 Which is the odd one out? (a) vinegar (b) salt water (c) sugar water (d) plain water
24. 24.🔍 Which is the odd one out? (a) vinegar (b) lemon juice (c) curd (d) salt water
25. 25.🧺 Which of these is needed for the fizzy balloon? (a) a funnel or spoon (b) a mirror (c) a magnet (d) sugar
26. 26.⚖️ 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
27. 27.🫧 Which of these is a base? (a) tamarind water (b) soap solution (c) vinegar (d) lemon juice
28. 28.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
29. 29.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
30. 30.🫧 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
31. 31.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) False (b) True
32. 32.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
33. 33.⚖️ 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) spoons of baking soda (d) size of the balloon
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the same bottle (b) size of the balloon (c) spoons of baking soda (d) the kind of balloon
36. 36.⚖️ 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
37. 37.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) soap solution (d) salt water
38. 38.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) add baking soda (d) rinse with clean water
39. 39.⚖️ 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) True (b) False
40. 40.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False

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