Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 633 · 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 mirror is needed for the fizzy balloon. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) vinegar (b) orange juice (c) sugar water (d) lemon juice
3. 3.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) the amount of vinegar (c) spoons of baking soda
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a battery cell (c) baking soda (d) a funnel or spoon
6. 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) an empty bottle (d) a mirror
7. 7.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) plain water (d) baking soda water
8. 8.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) nothing at all (c) it turns to ice (d) lots of fizzy bubbles
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a seed (c) baking soda (d) an empty bottle
10. 10.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
11. 11.🛟 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
12. 12.⚖️ 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
13. 13.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) seal it in a glass jar (c) shake it near your face (d) put it in your mouth
14. 14.🧺 Which of these is not needed for the fizzy balloon? (a) sugar (b) vinegar (c) an empty bottle (d) a balloon
15. 15.⚖️ 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
16. 16.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
17. 17.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) helium (c) hydrogen (d) carbon dioxide
18. 18.True or false: vinegar is an acid. (a) False (b) True
19. 19.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) False (b) True
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a tray for spills (c) baking soda (d) sugar
23. 23.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
24. 24.🫧 Which of these is a base? (a) orange juice (b) soap solution (c) sugar water (d) curd
25. 25.⚖️ 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
26. 26.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
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.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
29. 29.🔍 Which is the odd one out? (a) lemon juice (b) tamarind water (c) orange juice (d) soap solution
30. 30.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they float apart (c) they freeze (d) they react
31. 31.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) it turns to honey (c) a huge eruption (d) the balloon bursts
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we change it (c) we keep it the same
33. 33.📘 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
34. 34.⚖️ 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 keep it the same (c) we measure it
35. 35.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
36. 36.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
37. 37.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) a base (c) an acid
38. 38.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a magnet (c) a balloon (d) a seed
39. 39.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the balloon got cold (c) the gas froze (d) the bottle got tired
40. 40.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral

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