Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 521 · 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.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it turns blue (c) there is no change (d) it grows bigger
2. 2.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) plain water (d) baking soda water
3. 3.True or false: tamarind water is neutral. (a) True (b) False
4. 4.🔮 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
5. 5.🫧 Which of these is an acid? (a) orange juice (b) sugar water (c) plain water (d) soap solution
6. 6.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
7. 7.True or false: orange juice is a base. (a) True (b) False
8. 8.⚖️ 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 amount of vinegar (c) size of the balloon (d) the same bottle
9. 9.⚖️ 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
10. 10.🫧 Which of these is a base? (a) sugar water (b) lemon juice (c) vinegar (d) baking soda water
11. 11.🛟 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
12. 12.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a battery cell (c) baking soda (d) a magnet
13. 13.🛟 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
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we measure it (c) we keep it the same
15. 15.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
16. 16.🫧 Which of these is neutral? (a) tamarind water (b) sugar water (c) vinegar (d) soap solution
17. 17.⚖️ 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) False (b) True
18. 18.🫧 Which of these is a base? (a) salt water (b) tamarind water (c) detergent water (d) orange juice
19. 19.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
20. 20.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) it turns to honey (d) very little fizzing
21. 21.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
22. 22.⚖️ 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
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a funnel or spoon (c) a balloon (d) a comb
24. 24.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
25. 25.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) gas is made inside (c) vinegar is hot (d) outside air gets in
26. 26.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) vinegar (d) plain water
27. 27.🫧 Which of these is neutral? (a) curd (b) plain water (c) soap solution (d) tamarind water
28. 28.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
29. 29.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) a battery cell (d) vinegar
30. 30.True or false: a mirror is not needed for the fizzy balloon. (a) True (b) False
31. 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) baking soda (c) a funnel or spoon (d) vinegar
32. 32.⚖️ 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
33. 33.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) an empty bottle (c) a magnet (d) a comb
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) size of the balloon (c) the same bottle (d) the amount of vinegar
35. 35.📘 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
36. 36.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a balloon (c) a mirror (d) a tray for spills
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.⚖️ 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
39. 39.⚖️ 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
40. 40.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a balloon (c) baking soda (d) a comb

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