Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 586 · 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: sugar is not needed for the fizzy balloon. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) lemon juice (b) orange juice (c) sugar water (d) vinegar
3. 3.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it shrinks (c) it grows bigger (d) it turns blue
4. 4.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) outside air gets in (d) the bottle shrinks
5. 5.📘 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
6. 6.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) add baking soda (d) rinse with clean water
7. 7.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the bottle got tired (c) the gas froze (d) an ingredient ran out
8. 8.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) nothing at all (c) it turns to ice (d) lots of fizzy bubbles
9. 9.🧺 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
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a balloon (c) a comb (d) a tray for spills
11. 11.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) the balloon bursts (d) very little fizzing
12. 12.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) baking soda (c) a comb (d) a magnet
13. 13.True or false: baking soda water is an acid. (a) False (b) True
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) True (b) False
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) baking soda (c) a balloon (d) an empty bottle
16. 16.⚖️ 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 measure it (c) we change it
17. 17.⚖️ 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
18. 18.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
19. 19.True or false: curd is an acid. (a) True (b) False
20. 20.⚖️ 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
21. 21.🫧 Which of these is neutral? (a) orange juice (b) detergent water (c) sugar water (d) lemon juice
22. 22.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
23. 23.True or false: vinegar is an acid. (a) False (b) True
24. 24.⚖️ 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 same bottle (d) spoons of baking soda
25. 25.🫧 Is curd an acid, a base or neutral? (a) an acid (b) neutral (c) a base
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the kind of balloon
27. 27.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) False (b) True
29. 29.⚖️ 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 measure it (c) we change it
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a tray for spills (c) a mirror (d) a balloon
31. 31.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
32. 32.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
33. 33.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
34. 34.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
35. 35.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) a funnel or spoon (c) an empty bottle (d) vinegar
36. 36.True or false: soap solution is an acid. (a) False (b) True
37. 37.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) shake it near your face (d) seal it in a glass jar
38. 38.🔍 Which is the odd one out? (a) tamarind water (b) curd (c) lemon juice (d) detergent water
39. 39.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) hydrogen (c) oxygen (d) carbon dioxide
40. 40.🫧 Which of these is an acid? (a) vinegar (b) baking soda water (c) salt water (d) detergent water

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