Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 752 · 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.⚖️ 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) the same bottle (c) spoons of baking soda (d) size of the balloon
2. 2.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) outside air gets in (c) vinegar is hot (d) gas is made inside
3. 3.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) add baking soda (c) ignore it (d) rub it hard
4. 4.🫧 Which of these is a base? (a) tamarind water (b) soap solution (c) sugar water (d) salt water
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is what we measure. (a) True (b) False
6. 6.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) oxygen (c) helium (d) carbon dioxide
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) True (b) False
8. 8.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) sugar (c) a battery cell (d) baking soda
9. 9.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True
10. 10.⚖️ 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
11. 11.🫧 Which of these is neutral? (a) orange juice (b) detergent water (c) soap solution (d) plain water
12. 12.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
13. 13.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) seal it in a glass jar (c) put it in your mouth (d) shake it near your face
14. 14.🫧 Which of these is a base? (a) lemon juice (b) baking soda water (c) sugar water (d) plain water
15. 15.True or false: baking soda water is an acid. (a) True (b) False
16. 16.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it grows bigger (d) it turns blue
17. 17.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it glows in the dark (c) lots of fizzy bubbles (d) it turns to ice
18. 18.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only melting (c) it is only dissolving (d) yes, a new gas forms
19. 19.🫧 Which of these is a base? (a) orange juice (b) detergent water (c) curd (d) lemon juice
20. 20.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
21. 21.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) vinegar (c) an empty bottle (d) a magnet
22. 22.True or false: soap solution is a base. (a) False (b) True
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a mirror (c) vinegar (d) a balloon
24. 24.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
25. 25.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
26. 26.⚖️ 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
27. 27.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) a base (c) neutral
28. 28.⚖️ 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
29. 29.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) very little fizzing (d) it turns to honey
30. 30.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
31. 31.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
32. 32.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
33. 33.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) sugar (c) vinegar (d) an empty bottle
34. 34.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
35. 35.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
36. 36.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) an empty bottle (c) sugar (d) a tray for spills
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon (d) the kind of balloon
38. 38.⚖️ 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 change it (c) we keep it the same
39. 39.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a funnel or spoon (c) a balloon (d) a mirror
40. 40.True or false: a battery cell is needed for the fizzy balloon. (a) True (b) False

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