Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 541 · 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.True or false: lemon juice is a base. (a) True (b) False
2. 2.⚖️ 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
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) vinegar (c) an empty bottle (d) baking soda
4. 4.🫧 Which of these is a base? (a) tamarind water (b) vinegar (c) lemon juice (d) soap solution
5. 5.🧺 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 battery cell (d) vinegar
6. 6.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it grows bigger (c) there is no change (d) it turns blue
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) size of the balloon (c) the amount of vinegar (d) the same bottle
8. 8.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we change it (c) we keep it the same
10. 10.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a comb (c) a mirror (d) a tray for spills
11. 11.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only dissolving (c) yes, a new gas forms (d) it is only melting
12. 12.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
13. 13.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a balloon (c) a battery cell (d) sugar
14. 14.🧺 Which of these is not needed for the fizzy balloon? (a) a battery cell (b) baking soda (c) vinegar (d) a tray for spills
15. 15.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) shake it near your face (d) seal it in a glass jar
16. 16.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) it glows in the dark (c) nothing at all (d) lots of fizzy bubbles
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) baking soda (c) a balloon (d) a magnet
18. 18.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
19. 19.🎈 Why does the balloon blow up? (a) outside air gets in (b) the bottle shrinks (c) vinegar is hot (d) gas is made inside
20. 20.⚖️ 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
21. 21.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) carbon dioxide (c) oxygen (d) helium
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) an empty bottle (c) a funnel or spoon (d) a mirror
23. 23.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) orange juice (d) baking soda water
24. 24.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) an empty bottle (d) sugar
27. 27.🫧 Which of these is neutral? (a) baking soda water (b) orange juice (c) tamarind water (d) plain water
28. 28.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) plain water (d) soap solution
29. 29.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a seed (c) a funnel or spoon (d) vinegar
30. 30.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) a huge eruption (d) it turns to honey
31. 31.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a mirror (c) a magnet (d) an empty bottle
32. 32.True or false: sugar water is an acid. (a) False (b) True
33. 33.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
34. 34.True or false: baking soda water is an acid. (a) False (b) True
35. 35.⚖️ 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) spoons of baking soda (d) size of the balloon
36. 36.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
37. 37.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
38. 38.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
40. 40.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) an ingredient ran out (d) the bottle got tired

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