Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 598 · 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 plain water instead of vinegar. What happens? (a) the balloon bursts (b) it turns to honey (c) a huge eruption (d) very little fizzing
2. 2.True or false: plain water is neutral. (a) True (b) False
3. 3.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) ignore it (c) rinse with clean water (d) rub it hard
4. 4.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
5. 5.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) baking soda (c) an empty bottle (d) vinegar
8. 8.True or false: baking soda water is a base. (a) True (b) False
9. 9.⚖️ 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) the kind of balloon (d) size of the balloon
10. 10.True or false: vinegar is an acid. (a) False (b) True
11. 11.🫧 Is plain water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
12. 12.⚖️ 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
13. 13.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
14. 14.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
15. 15.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
16. 16.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) nothing at all (c) lots of fizzy bubbles (d) it glows in the dark
17. 17.⚖️ 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 kind of balloon
18. 18.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) an empty bottle (c) a funnel or spoon (d) a comb
20. 20.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) gas is made inside (d) the bottle shrinks
21. 21.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) tamarind water (d) soap solution
22. 22.🫧 Which of these is an acid? (a) soap solution (b) plain water (c) detergent water (d) lemon juice
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) size of the balloon (c) the amount of vinegar (d) the kind of balloon
25. 25.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
26. 26.⚖️ 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
27. 27.🧺 Which of these is needed for the fizzy balloon? (a) a tray for spills (b) sugar (c) a comb (d) a battery cell
28. 28.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
29. 29.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a seed (c) baking soda (d) sugar
30. 30.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a seed (c) a tray for spills (d) baking soda
31. 31.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) True (b) False
32. 32.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
33. 33.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) shake it near your face (c) seal it in a glass jar (d) keep it away from eyes
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) baking soda (c) a tray for spills (d) a magnet
35. 35.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the gas froze (c) an ingredient ran out (d) the bottle got tired
36. 36.🔍 Which is the odd one out? (a) soap solution (b) plain water (c) baking soda water (d) detergent water
37. 37.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
38. 38.True or false: detergent water is neutral. (a) True (b) False
39. 39.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) helium (c) carbon dioxide (d) oxygen
40. 40.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) an acid (c) a base

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids