Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 603 · 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.⚖️ 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
2. 2.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
3. 3.⚖️ 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 keep it the same (c) we change it
4. 4.True or false: a battery cell is not needed for the fizzy balloon. (a) True (b) False
5. 5.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
6. 6.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
7. 7.🔍 Which is the odd one out? (a) soap solution (b) salt water (c) plain water (d) sugar water
8. 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the kind of balloon (c) size of the balloon
9. 9.⚖️ 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
10. 10.True or false: vinegar is not needed for the fizzy balloon. (a) True (b) False
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a mirror (c) a tray for spills (d) an empty bottle
12. 12.🫧 Which of these is neutral? (a) baking soda water (b) salt water (c) orange juice (d) tamarind water
13. 13.🫧 Is curd an acid, a base or neutral? (a) a base (b) an acid (c) neutral
14. 14.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) lots of fizzy bubbles (c) it turns to ice (d) nothing at all
15. 15.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the balloon got cold (c) the gas froze (d) an ingredient ran out
16. 16.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a magnet (c) a balloon (d) vinegar
17. 17.True or false: tamarind water is a base. (a) False (b) True
18. 18.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
19. 19.🫧 Which of these is an acid? (a) salt water (b) lemon juice (c) baking soda water (d) soap solution
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) False (b) True
21. 21.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
22. 22.True or false: soap solution is a base. (a) True (b) False
23. 23.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a seed (c) a battery cell (d) a tray for spills
24. 24.🎈 Why does the balloon blow up? (a) outside air gets in (b) gas is made inside (c) vinegar is hot (d) the bottle shrinks
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) False (b) True
26. 26.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
27. 27.⚖️ 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 change it (c) we keep it the same
28. 28.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) it is only melting (c) yes, a new gas forms (d) no, nothing changes
29. 29.⚖️ 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
30. 30.True or false: salt water is a base. (a) False (b) True
31. 31.⚖️ 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 measure it (c) we keep it the same
32. 32.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) curd (d) baking soda water
33. 33.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a comb (c) baking soda (d) a funnel or spoon
35. 35.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
36. 36.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a seed (c) baking soda (d) sugar
37. 37.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
38. 38.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) shake it near your face (c) put it in your mouth (d) keep it away from eyes
39. 39.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) helium (c) hydrogen (d) carbon dioxide
40. 40.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) there is no change (d) it shrinks

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