Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 913 · 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: lemon juice is an acid. (a) False (b) True
2. 2.⚖️ 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) the kind of balloon (c) the same bottle (d) the amount of vinegar
3. 3.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) vinegar (c) a mirror (d) an empty bottle
4. 4.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
5. 5.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
6. 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) an empty bottle (c) baking soda (d) vinegar
7. 7.⚖️ 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 change it (c) we measure it
8. 8.True or false: soap solution is an acid. (a) False (b) True
9. 9.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a comb (c) baking soda (d) vinegar
11. 11.🔍 Which is the odd one out? (a) sugar water (b) vinegar (c) plain water (d) salt water
12. 12.True or false: a mirror is needed for the fizzy balloon. (a) False (b) True
13. 13.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a magnet (c) a tray for spills (d) sugar
14. 14.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) an empty bottle (c) a battery cell (d) sugar
15. 15.🎈 Why does the balloon blow up? (a) gas is made inside (b) the bottle shrinks (c) outside air gets in (d) vinegar is hot
16. 16.True or false: vinegar is neutral. (a) False (b) True
17. 17.🫧 Which of these is neutral? (a) tamarind water (b) plain water (c) baking soda water (d) detergent water
18. 18.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) ignore it (c) rinse with clean water (d) add baking soda
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we keep it the same (c) we change it
20. 20.True or false: sugar water is an acid. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) plain water (b) tamarind water (c) lemon juice (d) vinegar
22. 22.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
23. 23.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) an empty bottle (c) a magnet (d) vinegar
24. 24.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) helium (c) hydrogen (d) carbon dioxide
25. 25.⚖️ 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 amount of vinegar
26. 26.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they freeze (c) they float apart (d) they become magnets
27. 27.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) lots of fizzy bubbles (c) nothing at all (d) it turns to ice
28. 28.🔍 Which is the odd one out? (a) plain water (b) salt water (c) sugar water (d) orange juice
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we keep it the same (c) we change it
30. 30.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
31. 31.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
32. 32.⚖️ 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
33. 33.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) very little fizzing (c) it turns to honey (d) the balloon bursts
34. 34.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the kind of balloon (b) spoons of baking soda (c) size of the balloon
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we measure it (c) we keep it the same
37. 37.True or false: vinegar is not needed for the fizzy balloon. (a) True (b) False
38. 38.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) there is no change (c) it grows bigger (d) it shrinks
39. 39.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) seal it in a glass jar (d) shake it near your face
40. 40.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a funnel or spoon (c) a comb (d) baking soda

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