Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 794 · 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 is the odd one out? (a) curd (b) lemon juice (c) orange juice (d) detergent water
2. 2.🔍 Which is the odd one out? (a) salt water (b) curd (c) plain water (d) sugar water
3. 3.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) it is only dissolving (c) yes, a new gas forms (d) no, nothing changes
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
6. 6.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they react (c) they float apart (d) they freeze
7. 7.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
8. 8.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
9. 9.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) add baking soda (c) rinse with clean water (d) ignore it
10. 10.🫧 Which of these is an acid? (a) vinegar (b) plain water (c) salt water (d) soap solution
11. 11.⚖️ 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
12. 12.⚖️ 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) spoons of baking soda (c) the same bottle (d) the kind of balloon
13. 13.⚖️ 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 same bottle
14. 14.🫧 Which of these is a base? (a) soap solution (b) tamarind water (c) vinegar (d) curd
15. 15.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) there is no change (d) it shrinks
16. 16.🎈 Why does the balloon blow up? (a) outside air gets in (b) the bottle shrinks (c) gas is made inside (d) vinegar is hot
17. 17.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) an ingredient ran out (c) the bottle got tired (d) the gas froze
18. 18.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
19. 19.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) baking soda (c) sugar (d) a balloon
20. 20.⚖️ 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 amount of vinegar (c) spoons of baking soda (d) the same bottle
21. 21.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) a magnet (c) a seed (d) a mirror
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) an empty bottle (c) baking soda (d) vinegar
23. 23.🫧 Which of these is an acid? (a) plain water (b) soap solution (c) sugar water (d) orange juice
24. 24.True or false: baking soda is needed for the fizzy balloon. (a) True (b) False
25. 25.🫧 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
26. 26.True or false: soap solution is a base. (a) False (b) True
27. 27.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) sugar (c) a mirror (d) a balloon
28. 28.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) helium (c) oxygen (d) hydrogen
29. 29.True or false: sugar water is a base. (a) False (b) True
30. 30.⚖️ 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
31. 31.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) an empty bottle (c) a tray for spills (d) vinegar
32. 32.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) baking soda (c) a tray for spills (d) an empty bottle
33. 33.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
34. 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a balloon (c) a seed (d) an empty bottle
35. 35.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we measure it (c) we keep it the same
37. 37.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
38. 38.True or false: salt water is neutral. (a) True (b) False
39. 39.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) shake it near your face (c) keep it away from eyes (d) seal it in a glass jar
40. 40.🫧 Which of these is a base? (a) detergent water (b) lemon juice (c) curd (d) sugar water

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