Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 168 · 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.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) False (b) True
3. 3.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
4. 4.⚖️ 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
5. 5.True or false: salt water is a base. (a) False (b) True
6. 6.🫧 Is plain water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
7. 7.🫧 Which of these is neutral? (a) lemon juice (b) vinegar (c) soap solution (d) salt water
8. 8.🫧 Which of these is a base? (a) tamarind water (b) detergent water (c) vinegar (d) plain water
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) baking soda (d) a magnet
10. 10.🔮 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
11. 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) the amount of vinegar (c) spoons of baking soda (d) size of the balloon
12. 12.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
13. 13.🧺 Which of these is needed for the fizzy balloon? (a) a tray for spills (b) a battery cell (c) a magnet (d) sugar
14. 14.⚖️ 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 kind of balloon
15. 15.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) vinegar (c) a balloon (d) a mirror
16. 16.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a battery cell (c) a magnet (d) baking soda
17. 17.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) salt water (d) tamarind water
18. 18.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) oxygen (c) carbon dioxide (d) hydrogen
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a battery cell (c) a funnel or spoon (d) an empty bottle
20. 20.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they freeze (c) they become magnets (d) they react
21. 21.True or false: soap solution is a base. (a) False (b) True
22. 22.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) it glows in the dark (c) nothing at all (d) lots of fizzy bubbles
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the same bottle (b) size of the balloon (c) spoons of baking soda
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) True (b) False
25. 25.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
26. 26.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
27. 27.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the bottle got tired (c) an ingredient ran out (d) the balloon got cold
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) True (b) False
29. 29.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
30. 30.⚖️ 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
31. 31.🔍 Which is the odd one out? (a) plain water (b) salt water (c) vinegar (d) sugar water
32. 32.True or false: a mirror is needed for the fizzy balloon. (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) the amount of vinegar (b) spoons of baking soda (c) size of the balloon
34. 34.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True
35. 35.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a comb (c) a funnel or spoon (d) a battery cell
36. 36.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) keep it away from eyes (d) shake it near your face
37. 37.🫧 Which of these is an acid? (a) baking soda water (b) tamarind water (c) detergent water (d) salt water
38. 38.True or false: a magnet is not needed for the fizzy balloon. (a) False (b) True
39. 39.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
40. 40.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) a huge eruption (c) the balloon bursts (d) very little fizzing

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