Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 739 · 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.🫧 Which of these is neutral? (a) salt water (b) vinegar (c) curd (d) soap solution
2. 2.⚖️ 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) spoons of baking soda (d) size of the balloon
3. 3.🧺 Which of these is needed for the fizzy balloon? (a) an empty bottle (b) a mirror (c) a magnet (d) a seed
4. 4.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
5. 5.⚖️ 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) True (b) False
6. 6.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
7. 7.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
8. 8.🔍 Which is the odd one out? (a) tamarind water (b) curd (c) detergent water (d) lemon juice
9. 9.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
10. 10.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) keep it away from eyes (d) seal it in a glass jar
11. 11.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a funnel or spoon (c) a battery cell (d) a balloon
12. 12.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
13. 13.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it turns blue (c) it grows bigger (d) it shrinks
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) the bottle shrinks (d) outside air gets in
17. 17.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
18. 18.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
19. 19.🧺 Which of these is needed for the fizzy balloon? (a) a funnel or spoon (b) a seed (c) a mirror (d) sugar
20. 20.🫧 Is curd an acid, a base or neutral? (a) an acid (b) neutral (c) a base
21. 21.True or false: plain water is an acid. (a) False (b) True
22. 22.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
23. 23.🫧 Which of these is a base? (a) sugar water (b) lemon juice (c) soap solution (d) salt water
24. 24.True or false: salt water is an acid. (a) True (b) False
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) True (b) False
26. 26.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a funnel or spoon (c) a mirror (d) vinegar
27. 27.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they become magnets (c) they float apart (d) they freeze
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) the kind of balloon (c) the same bottle (d) spoons of baking soda
29. 29.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
30. 30.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) add baking soda (d) rinse with clean water
31. 31.🔮 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
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) False (b) True
33. 33.⚖️ 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 kind of balloon
34. 34.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
35. 35.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) helium (c) hydrogen (d) oxygen
36. 36.True or false: plain water is neutral. (a) True (b) False
37. 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a tray for spills (c) sugar (d) vinegar
38. 38.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
39. 39.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only melting (c) yes, a new gas forms (d) it is only dissolving
40. 40.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) a base (c) an acid

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