Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 942 · 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.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
2. 2.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a balloon (c) a magnet (d) a mirror
3. 3.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
4. 4.True or false: tamarind water is neutral. (a) True (b) False
5. 5.True or false: plain water is a base. (a) True (b) False
6. 6.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
7. 7.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) lemon juice
8. 8.🔮 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
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) vinegar (c) a tray for spills (d) an empty bottle
10. 10.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
11. 11.⚖️ 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
12. 12.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) sugar (c) a seed (d) vinegar
13. 13.🎈 Why does the balloon blow up? (a) vinegar is hot (b) the bottle shrinks (c) outside air gets in (d) gas is made inside
14. 14.⚖️ 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
15. 15.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a comb (c) baking soda (d) vinegar
16. 16.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
17. 17.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
18. 18.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
19. 19.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
20. 20.True or false: detergent water is neutral. (a) True (b) False
21. 21.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it turns to ice (c) lots of fizzy bubbles (d) it glows in the dark
22. 22.True or false: detergent water is an acid. (a) True (b) False
23. 23.🫧 Which of these is an acid? (a) soap solution (b) tamarind water (c) salt water (d) sugar water
24. 24.🔍 Which is the odd one out? (a) tamarind water (b) plain water (c) curd (d) orange juice
25. 25.🛟 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
26. 26.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) shake it near your face (c) keep it away from eyes (d) seal it in a glass jar
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) the same bottle (c) the amount of vinegar (d) size of the balloon
28. 28.🫧 Which of these is a base? (a) lemon juice (b) sugar water (c) soap solution (d) vinegar
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.🫧 Which of these is a base? (a) lemon juice (b) plain water (c) curd (d) baking soda water
31. 31.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
32. 32.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) vinegar (c) an empty bottle (d) a battery cell
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the same bottle (b) size of the balloon (c) spoons of baking soda
34. 34.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
35. 35.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
36. 36.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they react (c) they float apart (d) they freeze
37. 37.🫧 Which of these is neutral? (a) curd (b) detergent water (c) plain water (d) lemon juice
38. 38.🫧 Which of these is neutral? (a) vinegar (b) sugar water (c) detergent water (d) lemon juice
39. 39.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) very little fizzing (d) it turns to honey
40. 40.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the balloon got cold (c) the bottle got tired (d) the gas froze

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