Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 390 · 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? True or false: the amount of vinegar is kept the same. (a) False (b) True
2. 2.🫧 Which of these is a base? (a) orange juice (b) lemon juice (c) baking soda water (d) plain water
3. 3.True or false: soap solution is an acid. (a) False (b) True
4. 4.🫧 Which of these is neutral? (a) salt water (b) soap solution (c) curd (d) lemon juice
5. 5.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) the amount of vinegar (c) size of the balloon (d) spoons of baking soda
6. 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a mirror (c) vinegar (d) baking soda
7. 7.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) ignore it (d) rinse with clean water
8. 8.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
9. 9.⚖️ 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
10. 10.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) vinegar (c) a mirror (d) a balloon
11. 11.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) the balloon bursts (c) very little fizzing (d) a huge eruption
12. 12.⚖️ 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
13. 13.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) no, nothing changes (c) yes, a new gas forms (d) it is only dissolving
14. 14.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) an ingredient ran out (c) the bottle got tired (d) the balloon got cold
15. 15.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) nothing at all (c) lots of fizzy bubbles (d) it turns to ice
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) spoons of baking soda (c) the kind of balloon (d) the amount of vinegar
17. 17.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
18. 18.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) an empty bottle (c) a comb (d) vinegar
19. 19.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
20. 20.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
21. 21.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
22. 22.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they freeze (c) they react (d) they float apart
23. 23.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
24. 24.True or false: a mirror is not needed for the fizzy balloon. (a) True (b) False
25. 25.⚖️ 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
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
27. 27.🧺 Which of these is not needed for the fizzy balloon? (a) a seed (b) baking soda (c) vinegar (d) a balloon
28. 28.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) sugar (c) vinegar (d) baking soda
29. 29.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
30. 30.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
31. 31.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
32. 32.🫧 Which of these is an acid? (a) baking soda water (b) sugar water (c) detergent water (d) orange juice
33. 33.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it shrinks (c) it grows bigger (d) there is no change
34. 34.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) keep it away from eyes (d) seal it in a glass jar
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the kind of balloon (c) size of the balloon
36. 36.🫧 Which of these is neutral? (a) plain water (b) soap solution (c) orange juice (d) curd
37. 37.True or false: salt water is a base. (a) False (b) True
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a seed (c) vinegar (d) a balloon
39. 39.🫧 Which of these is a base? (a) lemon juice (b) vinegar (c) curd (d) soap solution
40. 40.🔍 Which is the odd one out? (a) tamarind water (b) curd (c) lemon juice (d) sugar water

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