Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 952 · 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 shrinks (b) it turns blue (c) it grows bigger (d) there is no change
2. 2.🎈 Why does the balloon blow up? (a) gas is made inside (b) the bottle shrinks (c) vinegar is hot (d) outside air gets in
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a balloon (c) a mirror (d) a tray for spills
4. 4.🧺 Which of these is not needed for the fizzy balloon? (a) sugar (b) a balloon (c) a funnel or spoon (d) vinegar
5. 5.⚖️ 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
6. 6.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a battery cell (c) a funnel or spoon (d) a tray for spills
8. 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we measure it (c) we change it
9. 9.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) nothing at all (c) it turns to ice (d) lots of fizzy bubbles
10. 10.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
11. 11.🫧 Which of these is a base? (a) orange juice (b) lemon juice (c) soap solution (d) sugar water
12. 12.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a magnet (c) an empty bottle (d) baking soda
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a balloon (c) a seed (d) a tray for spills
14. 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) vinegar (c) sugar (d) a balloon
15. 15.True or false: salt water is an acid. (a) False (b) True
16. 16.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
17. 17.True or false: vinegar is an acid. (a) False (b) True
18. 18.⚖️ 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
19. 19.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
20. 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a funnel or spoon (c) a balloon (d) a magnet
21. 21.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the gas froze (c) the balloon got cold (d) the bottle got tired
22. 22.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
23. 23.⚖️ 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) False (b) True
24. 24.⚖️ 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
25. 25.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) baking soda (c) a funnel or spoon (d) a mirror
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) spoons of baking soda (c) size of the balloon (d) the amount of vinegar
27. 27.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) soap solution (d) tamarind water
28. 28.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) it is only melting (c) it is only dissolving (d) no, nothing changes
29. 29.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) False (b) True
31. 31.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we change it (c) we measure it
32. 32.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) an empty bottle (c) a battery cell (d) a seed
33. 33.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
34. 34.🔍 Which is the odd one out? (a) lemon juice (b) detergent water (c) tamarind water (d) curd
35. 35.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) very little fizzing (d) it turns to honey
36. 36.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) soap solution (d) plain water
37. 37.🫧 Which of these is neutral? (a) sugar water (b) detergent water (c) tamarind water (d) baking soda water
38. 38.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) shake it near your face (c) keep it away from eyes (d) put it in your mouth
39. 39.🫧 Which of these is neutral? (a) salt water (b) orange juice (c) soap solution (d) detergent water
40. 40.True or false: a mirror is not needed for the fizzy balloon. (a) True (b) False

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