Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 519 · 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 a base? (a) orange juice (b) sugar water (c) baking soda water (d) tamarind water
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) the same bottle (c) spoons of baking soda (d) size of the balloon
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) an empty bottle (c) a funnel or spoon (d) a comb
4. 4.🫧 Which of these is an acid? (a) plain water (b) lemon juice (c) sugar water (d) soap solution
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we keep it the same (c) we measure it
6. 6.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
7. 7.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
8. 8.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
9. 9.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) ignore it (d) rinse with clean water
10. 10.🧺 Which of these is needed for the fizzy balloon? (a) a tray for spills (b) a comb (c) a mirror (d) a seed
11. 11.True or false: vinegar is an acid. (a) True (b) False
12. 12.True or false: tamarind water is a base. (a) True (b) False
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a battery cell (c) a funnel or spoon (d) a balloon
14. 14.⚖️ 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 keep it the same (c) we measure it
15. 15.🔮 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
16. 16.🫧 Which of these is neutral? (a) lemon juice (b) salt water (c) tamarind water (d) orange juice
17. 17.🫧 Which of these is a base? (a) plain water (b) lemon juice (c) detergent water (d) tamarind water
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) vinegar (c) sugar (d) a balloon
19. 19.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
20. 20.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
21. 21.⚖️ 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
22. 22.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
23. 23.🫧 Which of these is an acid? (a) plain water (b) salt water (c) baking soda water (d) vinegar
24. 24.🎈 Why does the balloon blow up? (a) vinegar is hot (b) the bottle shrinks (c) gas is made inside (d) outside air gets in
25. 25.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they float apart (c) they react (d) they become magnets
26. 26.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) put it in your mouth (d) keep it away from eyes
27. 27.⚖️ 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
28. 28.⚖️ 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 amount of vinegar
29. 29.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the gas froze (c) an ingredient ran out (d) the bottle got tired
30. 30.⚖️ 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
31. 31.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) a funnel or spoon (c) vinegar (d) baking soda
32. 32.True or false: a balloon is needed for the fizzy balloon. (a) False (b) True
33. 33.⚖️ 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
34. 34.True or false: baking soda water is an acid. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) salt water (d) baking soda water
36. 36.⚖️ 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) False (b) True
37. 37.🔮 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
38. 38.🫧 Which of these is a base? (a) soap solution (b) tamarind water (c) lemon juice (d) vinegar
39. 39.True or false: lemon juice is neutral. (a) False (b) True
40. 40.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed

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