Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 171 · 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? What do we do with “the amount of vinegar”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🔍 Which is the odd one out? (a) tamarind water (b) soap solution (c) baking soda water (d) detergent water
3. 3.True or false: soap solution is an acid. (a) False (b) True
4. 4.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) sugar (c) baking soda (d) a magnet
5. 5.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
6. 6.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) ignore it (d) rinse with clean water
7. 7.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) neutral (c) an acid
8. 8.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) an ingredient ran out (c) the balloon got cold (d) the bottle got tired
9. 9.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
10. 10.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a tray for spills (c) a funnel or spoon (d) a magnet
11. 11.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) it shrinks (d) there is no change
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda
13. 13.🫧 Which of these is an acid? (a) detergent water (b) baking soda water (c) orange juice (d) salt water
14. 14.⚖️ 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 kind of balloon (c) the same bottle (d) size of the balloon
15. 15.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a battery cell (c) vinegar (d) a magnet
16. 16.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
17. 17.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) keep it away from eyes (d) seal it in a glass jar
18. 18.True or false: salt water is neutral. (a) True (b) False
19. 19.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) it is only dissolving (c) yes, a new gas forms (d) no, nothing changes
20. 20.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) the bottle shrinks (d) gas is made inside
21. 21.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
22. 22.⚖️ 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
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) spoons of baking soda (c) the same bottle (d) size of the balloon
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
25. 25.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) a huge eruption (c) it turns to honey (d) very little fizzing
26. 26.🧺 Which of these is not needed for the fizzy balloon? (a) a battery cell (b) an empty bottle (c) a balloon (d) baking soda
27. 27.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
28. 28.🧺 Which of these is needed for the fizzy balloon? (a) a tray for spills (b) a comb (c) a seed (d) sugar
29. 29.True or false: lemon juice is a base. (a) True (b) False
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a comb (c) a tray for spills (d) vinegar
32. 32.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) hydrogen (c) helium (d) carbon dioxide
33. 33.True or false: a magnet is not needed for the fizzy balloon. (a) True (b) False
34. 34.True or false: plain water is neutral. (a) False (b) True
35. 35.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
36. 36.True or false: orange juice is an acid. (a) False (b) True
37. 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) vinegar (c) a funnel or spoon (d) a magnet
38. 38.🧺 Which of these is not needed for the fizzy balloon? (a) sugar (b) vinegar (c) an empty bottle (d) baking soda
39. 39.🫧 Which of these is a base? (a) sugar water (b) lemon juice (c) soap solution (d) vinegar
40. 40.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False

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