Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 990 · 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.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) there is no change (c) it shrinks (d) it grows bigger
2. 2.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) salt water (d) baking soda water
3. 3.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
4. 4.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
5. 5.True or false: baking soda water is a base. (a) False (b) True
6. 6.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
7. 7.True or false: orange juice is a base. (a) True (b) False
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) an empty bottle (d) sugar
10. 10.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) an empty bottle (c) a mirror (d) baking soda
11. 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) True (b) False
13. 13.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
14. 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a funnel or spoon (c) an empty bottle (d) a comb
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) the amount of vinegar (c) the same bottle (d) size of the balloon
16. 16.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they freeze (c) they react (d) they become magnets
17. 17.🧺 Which of these is not needed for the fizzy balloon? (a) a battery cell (b) baking soda (c) an empty bottle (d) vinegar
18. 18.📘 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
19. 19.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) seal it in a glass jar (d) shake it near your face
20. 20.True or false: lemon juice is an acid. (a) True (b) False
21. 21.🫧 Is curd an acid, a base or neutral? (a) a base (b) an acid (c) neutral
22. 22.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
23. 23.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) an empty bottle (c) a balloon (d) sugar
24. 24.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) a base (c) neutral
25. 25.🔍 Which is the odd one out? (a) curd (b) detergent water (c) tamarind water (d) vinegar
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
27. 27.⚖️ 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 same bottle (d) the kind of balloon
28. 28.⚖️ 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 kind of balloon (c) spoons of baking soda
29. 29.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a battery cell (c) an empty bottle (d) a seed
30. 30.🔍 Which is the odd one out? (a) orange juice (b) plain water (c) sugar water (d) salt water
31. 31.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) add baking soda (c) ignore it (d) rub it hard
32. 32.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it turns to ice (c) lots of fizzy bubbles (d) it glows in the dark
33. 33.🫧 Is plain water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
34. 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) an empty bottle (d) a mirror
35. 35.True or false: plain water is an acid. (a) True (b) False
36. 36.True or false: orange juice is an acid. (a) False (b) True
37. 37.⚖️ 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
38. 38.🎈 Why does the balloon blow up? (a) outside air gets in (b) the bottle shrinks (c) vinegar is hot (d) gas is made inside
39. 39.🔮 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
40. 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a magnet (c) an empty bottle (d) a funnel or spoon

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