Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 724 · 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.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rinse with clean water (c) ignore it (d) rub it hard
2. 2.True or false: tamarind water is a base. (a) False (b) True
3. 3.⚖️ 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
4. 4.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
5. 5.⚖️ 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
6. 6.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
7. 7.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
8. 8.🫧 Which of these is a base? (a) orange juice (b) curd (c) tamarind water (d) baking soda water
9. 9.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
10. 10.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
11. 11.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only dissolving (c) yes, a new gas forms (d) it is only melting
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) True (b) False
13. 13.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
14. 14.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) tamarind water (b) lemon juice (c) curd (d) baking soda water
16. 16.🔮 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
17. 17.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
18. 18.🔮 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
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
21. 21.🫧 Which of these is an acid? (a) baking soda water (b) detergent water (c) tamarind water (d) plain water
22. 22.🛟 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
23. 23.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
24. 24.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) an empty bottle (c) a battery cell (d) a comb
25. 25.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
26. 26.⚖️ 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
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 amount of vinegar (c) the kind of balloon (d) the same bottle
28. 28.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
29. 29.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a battery cell (c) baking soda (d) a balloon
30. 30.🫧 Is plain water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
31. 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) a balloon (c) vinegar (d) a tray for spills
32. 32.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
33. 33.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a funnel or spoon (c) a mirror (d) sugar
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a tray for spills (c) a balloon (d) a magnet
35. 35.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
37. 37.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) an ingredient ran out (d) the bottle got tired
38. 38.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) salt water
40. 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) an empty bottle (c) a balloon (d) a seed

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