Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 761 · 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? True or false: the kind of balloon is the one thing we change. (a) True (b) False
2. 2.🎈 Why does the balloon blow up? (a) gas is made inside (b) outside air gets in (c) vinegar is hot (d) the bottle shrinks
3. 3.🧺 Which of these is not needed for the fizzy balloon? (a) a mirror (b) a tray for spills (c) vinegar (d) an empty bottle
4. 4.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a tray for spills (c) sugar (d) a battery cell
5. 5.⚖️ 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 change it (c) we keep it the same
6. 6.🧺 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 balloon (d) a seed
7. 7.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the gas froze (d) the bottle got tired
8. 8.🫧 Which of these is an acid? (a) sugar water (b) detergent water (c) lemon juice (d) baking soda water
9. 9.⚖️ 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
10. 10.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) hydrogen (c) oxygen (d) carbon dioxide
11. 11.True or false: tamarind water is a base. (a) True (b) False
12. 12.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) nothing at all (c) it glows in the dark (d) it turns to ice
13. 13.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
14. 14.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) an empty bottle (c) sugar (d) a magnet
15. 15.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
16. 16.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
17. 17.🔍 Which is the odd one out? (a) plain water (b) baking soda water (c) salt water (d) sugar water
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the kind of balloon (b) the amount of vinegar (c) size of the balloon (d) spoons of baking soda
19. 19.🫧 Is curd an acid, a base or neutral? (a) a base (b) an acid (c) neutral
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the amount of vinegar
21. 21.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it turns blue (c) there is no change (d) it grows bigger
22. 22.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) add baking soda (c) rinse with clean water (d) rub it hard
23. 23.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
24. 24.🛟 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
25. 25.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) curd (d) baking soda water
26. 26.True or false: vinegar is neutral. (a) True (b) False
27. 27.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) sugar (c) a tray for spills (d) an empty bottle
28. 28.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) it is only melting (c) no, nothing changes (d) yes, a new gas forms
29. 29.⚖️ 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
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) spoons of baking soda (c) the kind of balloon (d) the amount of vinegar
31. 31.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a funnel or spoon (c) a mirror (d) a magnet
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we change it (c) we keep it the same
33. 33.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) the balloon bursts (c) a huge eruption (d) it turns to honey
34. 34.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
35. 35.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
36. 36.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) an acid (c) neutral
37. 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) an empty bottle (c) baking soda (d) a battery cell
38. 38.🫧 Which of these is an acid? (a) baking soda water (b) sugar water (c) plain water (d) orange juice
39. 39.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
40. 40.True or false: a funnel or spoon is needed for the fizzy balloon. (a) True (b) False

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