Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 525 · 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.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) an empty bottle (d) a battery cell
4. 4.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) shake it near your face (d) seal it in a glass jar
5. 5.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) it turns to honey (d) very little fizzing
6. 6.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) it is only melting (c) no, nothing changes (d) it is only dissolving
7. 7.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
8. 8.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rinse with clean water (c) ignore it (d) rub it hard
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) an empty bottle (c) vinegar (d) a tray for spills
10. 10.🔍 Which is the odd one out? (a) orange juice (b) detergent water (c) lemon juice (d) vinegar
11. 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a balloon (c) sugar (d) a funnel or spoon
12. 12.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they freeze (c) they become magnets (d) they react
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the same bottle (b) the kind of balloon (c) spoons of baking soda (d) the amount of vinegar
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) the kind of balloon (c) the same bottle (d) the amount of vinegar
15. 15.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
16. 16.🧺 Which of these is needed for the fizzy balloon? (a) an empty bottle (b) a battery cell (c) a mirror (d) a magnet
17. 17.🫧 Is curd an acid, a base or neutral? (a) a base (b) an acid (c) neutral
18. 18.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) salt water
20. 20.⚖️ 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 amount of vinegar (c) size of the balloon
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) False (b) True
22. 22.🫧 Which of these is neutral? (a) baking soda water (b) lemon juice (c) soap solution (d) salt water
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we change it (c) we measure it
24. 24.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
25. 25.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
26. 26.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the gas froze (c) an ingredient ran out (d) the balloon got cold
27. 27.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) vinegar (c) a seed (d) a magnet
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) False (b) True
29. 29.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
30. 30.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) hydrogen (c) helium (d) carbon dioxide
31. 31.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) baking soda (c) a seed (d) a mirror
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the kind of balloon (b) size of the balloon (c) spoons of baking soda
33. 33.⚖️ 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
34. 34.True or false: plain water is a base. (a) False (b) True
35. 35.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
36. 36.🫧 Which of these is a base? (a) tamarind water (b) salt water (c) baking soda water (d) lemon juice
37. 37.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
38. 38.🫧 Which of these is a base? (a) tamarind water (b) plain water (c) vinegar (d) soap solution
39. 39.True or false: soap solution is a base. (a) False (b) True
40. 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the same bottle

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