Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 900 · 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? What do we do with “the same bottle”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🛟 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
3. 3.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) nothing at all (c) it turns to ice (d) it glows in the dark
4. 4.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
5. 5.🔍 Which is the odd one out? (a) tamarind water (b) lemon juice (c) vinegar (d) plain water
6. 6.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) very little fizzing (d) the balloon bursts
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) sugar (d) a balloon
8. 8.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
9. 9.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a tray for spills (c) an empty bottle (d) a magnet
10. 10.🫧 Which of these is a base? (a) salt water (b) curd (c) plain water (d) baking soda water
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a balloon (c) a comb (d) vinegar
12. 12.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the gas froze (c) the balloon got cold (d) the bottle got tired
13. 13.True or false: vinegar is an acid. (a) False (b) True
14. 14.True or false: curd is neutral. (a) False (b) True
15. 15.🫧 Which of these is neutral? (a) baking soda water (b) detergent water (c) salt water (d) soap solution
16. 16.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
17. 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
18. 18.⚖️ 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
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) spoons of baking soda (c) the kind of balloon (d) size of the balloon
20. 20.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) ignore it (c) rinse with clean water (d) rub it hard
21. 21.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
22. 22.True or false: tamarind water is an acid. (a) True (b) False
23. 23.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
24. 24.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
25. 25.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) an empty bottle (c) a mirror (d) a battery cell
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
27. 27.⚖️ 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
28. 28.🔮 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
29. 29.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) baking soda (c) a seed (d) a mirror
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a tray for spills (c) a mirror (d) vinegar
31. 31.True or false: lemon juice is an acid. (a) True (b) False
32. 32.True or false: soap solution is an acid. (a) True (b) False
33. 33.True or false: salt water is an acid. (a) True (b) False
34. 34.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
35. 35.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
36. 36.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a balloon (c) a battery cell (d) a tray for spills
37. 37.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) a tray for spills (c) baking soda (d) a funnel or spoon
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they freeze (c) they float apart (d) they react

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