Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 61 · 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 is the odd one out? (a) orange juice (b) vinegar (c) tamarind water (d) plain water
2. 2.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it grows bigger (d) it turns blue
3. 3.🔍 Which is the odd one out? (a) orange juice (b) curd (c) vinegar (d) sugar water
4. 4.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) it turns to honey (c) a huge eruption (d) the balloon bursts
5. 5.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) baking soda (c) a balloon (d) sugar
6. 6.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) yes, a new gas forms (c) it is only dissolving (d) no, nothing changes
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) vinegar (c) a battery cell (d) a balloon
8. 8.⚖️ 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
9. 9.True or false: vinegar is neutral. (a) False (b) True
10. 10.⚖️ 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
11. 11.🛟 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
12. 12.🧺 Which of these is not needed for the fizzy balloon? (a) a magnet (b) an empty bottle (c) a tray for spills (d) baking soda
13. 13.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
14. 14.⚖️ 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
15. 15.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) shake it near your face (c) put it in your mouth (d) seal it in a glass jar
16. 16.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the bottle got tired (c) the gas froze (d) the balloon got cold
17. 17.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
18. 18.🧺 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) a mirror (d) an empty bottle
19. 19.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) the same bottle (c) size of the balloon (d) spoons of baking soda
21. 21.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a mirror (c) an empty bottle (d) a comb
22. 22.⚖️ 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
23. 23.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
24. 24.True or false: tamarind water is neutral. (a) True (b) False
25. 25.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
26. 26.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) baking soda water (d) plain water
27. 27.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
28. 28.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a seed (c) a battery cell (d) baking soda
29. 29.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a funnel or spoon (c) vinegar (d) a magnet
31. 31.🫧 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
32. 32.⚖️ 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
33. 33.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
34. 34.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
35. 35.True or false: baking soda water is neutral. (a) True (b) False
36. 36.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
37. 37.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
38. 38.⚖️ 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
39. 39.True or false: tamarind water is a base. (a) True (b) False
40. 40.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed

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