Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 232 · 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: a magnet is not needed for the fizzy balloon. (a) False (b) True
2. 2.True or false: plain water is neutral. (a) False (b) True
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a balloon (c) a magnet (d) a tray for spills
4. 4.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) it turns to ice (c) lots of fizzy bubbles (d) nothing at all
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda (d) the kind of balloon
6. 6.True or false: sugar water is neutral. (a) True (b) False
7. 7.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) no, nothing changes (c) yes, a new gas forms (d) it is only melting
8. 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the kind of balloon (c) size of the balloon
9. 9.True or false: soap solution is a base. (a) True (b) False
10. 10.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) an empty bottle (c) a balloon (d) a magnet
12. 12.🔍 Which is the odd one out? (a) detergent water (b) orange juice (c) soap solution (d) baking soda water
13. 13.True or false: salt water is an acid. (a) False (b) True
14. 14.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
15. 15.🔮 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
16. 16.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) sugar (c) a comb (d) a funnel or spoon
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) an empty bottle (c) baking soda (d) vinegar
18. 18.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) outside air gets in (c) vinegar is hot (d) gas is made inside
19. 19.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the bottle got tired (c) an ingredient ran out (d) the balloon got cold
20. 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) an empty bottle (c) a funnel or spoon (d) a balloon
21. 21.⚖️ 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
22. 22.🫧 Which of these is a base? (a) curd (b) orange juice (c) salt water (d) soap solution
23. 23.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
24. 24.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
25. 25.True or false: sugar water is an acid. (a) False (b) True
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we measure it (c) we change it
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
28. 28.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) the balloon bursts (c) a huge eruption (d) very little fizzing
29. 29.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) ignore it (c) rub it hard (d) add baking soda
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
31. 31.🛟 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
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we keep it the same (b) we measure it (c) we change it
33. 33.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) baking soda (c) a comb (d) a battery cell
34. 34.🔍 Which is the odd one out? (a) vinegar (b) salt water (c) plain water (d) sugar water
35. 35.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) vinegar (c) a seed (d) a balloon
36. 36.🫧 Which of these is a base? (a) sugar water (b) detergent water (c) curd (d) orange juice
37. 37.True or false: detergent water is neutral. (a) True (b) False
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a battery cell (c) vinegar (d) an empty bottle
39. 39.🔍 Which is the odd one out? (a) baking soda water (b) tamarind water (c) orange juice (d) vinegar
40. 40.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed

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