Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 447 · 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 gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) hydrogen (c) helium (d) carbon dioxide
2. 2.⚖️ 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
3. 3.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the gas froze (c) the bottle got tired (d) the balloon got cold
4. 4.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) yes, a new gas forms (c) no, nothing changes (d) it is only dissolving
5. 5.🔍 Which is the odd one out? (a) orange juice (b) plain water (c) tamarind water (d) vinegar
6. 6.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) an acid (c) a base
7. 7.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) sugar (c) an empty bottle (d) a funnel or spoon
8. 8.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) vinegar (d) salt water
9. 9.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
10. 10.🧺 Which of these is needed for the fizzy balloon? (a) a funnel or spoon (b) sugar (c) a comb (d) a mirror
11. 11.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) the amount of vinegar (c) spoons of baking soda
13. 13.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they become magnets (c) they float apart (d) they freeze
14. 14.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) lots of fizzy bubbles (c) it glows in the dark (d) nothing at all
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a mirror (c) baking soda (d) an empty bottle
16. 16.🔍 Which is the odd one out? (a) lemon juice (b) vinegar (c) orange juice (d) baking soda water
17. 17.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
18. 18.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a tray for spills (c) baking soda (d) a comb
19. 19.True or false: sugar is needed for the fizzy balloon. (a) False (b) True
20. 20.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) the amount of vinegar (c) the same bottle (d) spoons of baking soda
22. 22.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) seal it in a glass jar (c) put it in your mouth (d) shake it near your face
23. 23.⚖️ 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
24. 24.🫧 Which of these is neutral? (a) tamarind water (b) vinegar (c) soap solution (d) plain water
25. 25.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) baking soda (c) a battery cell (d) a balloon
26. 26.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) detergent water (d) salt water
27. 27.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
28. 28.🔍 Which is the odd one out? (a) orange juice (b) tamarind water (c) soap solution (d) vinegar
29. 29.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a balloon (c) a seed (d) a magnet
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) True (b) False
31. 31.🔮 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
32. 32.True or false: baking soda water is an acid. (a) False (b) True
33. 33.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
34. 34.True or false: tamarind water is an acid. (a) False (b) True
35. 35.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a comb (c) a mirror (d) an empty bottle
36. 36.True or false: plain water is neutral. (a) False (b) True
37. 37.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
38. 38.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
39. 39.⚖️ 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
40. 40.True or false: a mirror is needed for the fizzy balloon. (a) False (b) True

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