Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 797 · 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: an empty bottle is needed for the fizzy balloon. (a) True (b) False
2. 2.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
3. 3.True or false: curd is a base. (a) False (b) True
4. 4.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) seal it in a glass jar (c) shake it near your face (d) put it in your mouth
5. 5.⚖️ 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 change it (c) we measure it
6. 6.⚖️ 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
7. 7.True or false: plain water is neutral. (a) True (b) False
8. 8.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
9. 9.🔍 Which is the odd one out? (a) lemon juice (b) sugar water (c) plain water (d) salt water
10. 10.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it grows bigger (d) it turns blue
11. 11.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
12. 12.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
13. 13.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
14. 14.⚖️ 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
15. 15.⚖️ 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) spoons of baking soda (c) size of the balloon (d) the amount of vinegar
16. 16.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) it turns to ice (c) nothing at all (d) lots of fizzy bubbles
17. 17.True or false: tamarind water is an acid. (a) False (b) True
18. 18.🫧 Which of these is a base? (a) tamarind water (b) detergent water (c) plain water (d) orange juice
19. 19.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the bottle got tired (c) an ingredient ran out (d) the balloon got cold
20. 20.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) the bottle shrinks (d) gas is made inside
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
23. 23.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
24. 24.True or false: sugar is needed for the fizzy balloon. (a) False (b) True
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) a balloon (c) an empty bottle (d) vinegar
26. 26.🫧 Which of these is neutral? (a) orange juice (b) curd (c) sugar water (d) vinegar
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a mirror (c) baking soda (d) a balloon
28. 28.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
29. 29.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) yes, a new gas forms (c) no, nothing changes (d) it is only melting
30. 30.True or false: orange juice is an acid. (a) False (b) True
31. 31.⚖️ 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
32. 32.🔍 Which is the odd one out? (a) detergent water (b) lemon juice (c) vinegar (d) orange juice
33. 33.🫧 Which of these is neutral? (a) lemon juice (b) salt water (c) baking soda water (d) orange juice
34. 34.🔍 Which is the odd one out? (a) tamarind water (b) orange juice (c) curd (d) baking soda water
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) True (b) False
36. 36.🧺 Which of these is not needed for the fizzy balloon? (a) a battery cell (b) vinegar (c) an empty bottle (d) a tray for spills
37. 37.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
38. 38.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a balloon (c) a mirror (d) a magnet
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) the amount of vinegar (c) the kind of balloon (d) spoons of baking soda
40. 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a seed (c) an empty bottle (d) a balloon

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