Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 229 · 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.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the balloon got cold (c) the bottle got tired (d) the gas froze
2. 2.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) baking soda (c) a tray for spills (d) a seed
4. 4.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) neutral (c) an acid
5. 5.🔍 Which is the odd one out? (a) vinegar (b) lemon juice (c) curd (d) soap solution
6. 6.⚖️ 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 same bottle (c) the amount of vinegar (d) spoons of baking soda
7. 7.True or false: detergent water is a base. (a) False (b) True
8. 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a tray for spills (c) a comb (d) a balloon
9. 9.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) gas is made inside (d) outside air gets in
10. 10.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they react (c) they float apart (d) they freeze
11. 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) True (b) False
12. 12.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
13. 13.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) add baking soda (c) ignore it (d) rinse with clean water
14. 14.⚖️ 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
15. 15.🫧 Is curd an acid, a base or neutral? (a) an acid (b) a base (c) neutral
16. 16.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a tray for spills (c) a magnet (d) baking soda
18. 18.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) salt water (d) detergent water
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) False (b) True
20. 20.True or false: a battery cell is needed for the fizzy balloon. (a) True (b) False
21. 21.⚖️ 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
22. 22.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) yes, a new gas forms (c) it is only melting (d) no, nothing changes
23. 23.🔍 Which is the odd one out? (a) plain water (b) baking soda water (c) detergent water (d) soap solution
24. 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) baking soda (c) a battery cell (d) vinegar
25. 25.True or false: orange juice is an acid. (a) False (b) True
26. 26.True or false: baking soda water is a base. (a) False (b) True
27. 27.🛟 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
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
29. 29.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) lots of fizzy bubbles (c) nothing at all (d) it turns to ice
30. 30.True or false: salt water is neutral. (a) True (b) False
31. 31.🔮 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
32. 32.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) sugar water (d) baking soda water
33. 33.True or false: soap solution is a base. (a) False (b) True
34. 34.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
35. 35.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
36. 36.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) sugar (c) an empty bottle (d) a tray for spills
37. 37.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
38. 38.⚖️ 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
39. 39.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a comb (c) a seed (d) vinegar
40. 40.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed

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