Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 159 · 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 of these is not needed for the fizzy balloon? (a) a magnet (b) vinegar (c) an empty bottle (d) a balloon
2. 2.🔍 Which is the odd one out? (a) detergent water (b) sugar water (c) plain water (d) salt water
3. 3.🫧 Which of these is a base? (a) detergent water (b) salt water (c) vinegar (d) orange juice
4. 4.🎈 Why does the balloon blow up? (a) vinegar is hot (b) the bottle shrinks (c) outside air gets in (d) gas is made inside
5. 5.🛟 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
6. 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a mirror (c) vinegar (d) a tray for spills
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) True (b) False
8. 8.True or false: tamarind water is neutral. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) detergent water (d) sugar water
10. 10.⚖️ 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) size of the balloon (d) the kind of balloon
11. 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the same bottle (b) spoons of baking soda (c) size of the balloon
12. 12.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a magnet (c) a funnel or spoon (d) an empty bottle
13. 13.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
14. 14.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a balloon (c) a comb (d) vinegar
17. 17.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) ignore it (c) rub it hard (d) add baking soda
18. 18.True or false: sugar water is a base. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) soap solution (d) plain water
20. 20.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
21. 21.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the bottle got tired (c) the balloon got cold (d) an ingredient ran out
22. 22.⚖️ 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
23. 23.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a seed (c) a funnel or spoon (d) a battery cell
24. 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) a funnel or spoon (d) sugar
25. 25.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) yes, a new gas forms (c) it is only dissolving (d) it is only melting
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
27. 27.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they become magnets (c) they freeze (d) they react
28. 28.⚖️ 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 amount of vinegar
29. 29.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
31. 31.True or false: curd is a base. (a) False (b) True
32. 32.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) hydrogen (c) carbon dioxide (d) helium
33. 33.⚖️ 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) the amount of vinegar (c) spoons of baking soda (d) size of the balloon
34. 34.True or false: vinegar is a base. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) plain water (d) baking soda water
36. 36.🫧 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
37. 37.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
38. 38.🫧 Is curd an acid, a base or neutral? (a) a base (b) an acid (c) neutral
39. 39.True or false: tamarind water is an acid. (a) False (b) True
40. 40.🫧 Which of these is neutral? (a) tamarind water (b) orange juice (c) plain water (d) soap solution

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