Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 252 · 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: tamarind water is an acid. (a) True (b) False
2. 2.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
3. 3.🫧 Which of these is an acid? (a) soap solution (b) detergent water (c) salt water (d) lemon juice
4. 4.🫧 Which of these is neutral? (a) salt water (b) baking soda water (c) vinegar (d) lemon juice
5. 5.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they become magnets (c) they freeze (d) they react
6. 6.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
7. 7.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) seal it in a glass jar (d) keep it away from eyes
8. 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) spoons of baking soda (c) the kind of balloon (d) the amount of vinegar
9. 9.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) it turns to honey (d) very little fizzing
10. 10.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
11. 11.🫧 Which of these is a base? (a) salt water (b) curd (c) tamarind water (d) baking soda water
12. 12.🫧 Which of these is neutral? (a) vinegar (b) orange juice (c) curd (d) plain water
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we measure it (c) we keep it the same
14. 14.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
15. 15.⚖️ 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
16. 16.⚖️ 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
17. 17.⚖️ 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 kind of balloon
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) a funnel or spoon (c) baking soda (d) a tray for spills
19. 19.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the gas froze (c) the bottle got tired (d) the balloon got cold
20. 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a mirror (c) baking soda (d) a funnel or spoon
21. 21.True or false: soap solution is a base. (a) True (b) False
22. 22.⚖️ 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
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) vinegar (c) an empty bottle (d) a tray for spills
24. 24.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a tray for spills (c) a mirror (d) a balloon
25. 25.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
26. 26.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) sugar (c) a funnel or spoon (d) baking soda
27. 27.🫧 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
28. 28.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) plain water (d) detergent water
29. 29.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
30. 30.⚖️ 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
31. 31.⚖️ 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
32. 32.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
33. 33.⚖️ 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
34. 34.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) add baking soda (c) rinse with clean water (d) ignore it
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
36. 36.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) it grows bigger (c) it shrinks (d) there is no change
39. 39.🔍 Which is the odd one out? (a) orange juice (b) sugar water (c) curd (d) vinegar
40. 40.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True

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