Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 107 · 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: orange juice is neutral. (a) False (b) True
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we measure it (b) we change it (c) we keep it the same
3. 3.📘 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
4. 4.⚖️ 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
5. 5.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) add baking soda (d) rinse with clean water
6. 6.⚖️ 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 amount of vinegar (d) the same bottle
7. 7.True or false: a tray for spills is needed for the fizzy balloon. (a) False (b) True
8. 8.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
9. 9.True or false: sugar water is neutral. (a) False (b) True
10. 10.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it turns to ice (c) lots of fizzy bubbles (d) it glows in the dark
11. 11.True or false: a magnet is needed for the fizzy balloon. (a) True (b) False
12. 12.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) very little fizzing (c) the balloon bursts (d) it turns to honey
13. 13.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
14. 14.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) shake it near your face (d) seal it in a glass jar
15. 15.⚖️ 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 keep it the same (c) we change it
16. 16.True or false: detergent water is a base. (a) False (b) True
17. 17.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) it is only melting (c) yes, a new gas forms (d) no, nothing changes
18. 18.🫧 Which of these is neutral? (a) sugar water (b) curd (c) tamarind water (d) vinegar
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we change it (b) we measure it (c) we keep it the same
20. 20.True or false: sugar water is an acid. (a) True (b) False
21. 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) a tray for spills (c) an empty bottle (d) vinegar
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) vinegar (c) a comb (d) a funnel or spoon
23. 23.🔍 Which is the odd one out? (a) detergent water (b) tamarind water (c) vinegar (d) lemon juice
24. 24.🫧 Which of these is a base? (a) curd (b) sugar water (c) baking soda water (d) vinegar
25. 25.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a mirror (c) baking soda (d) vinegar
26. 26.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
27. 27.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) soap solution (d) tamarind water
28. 28.⚖️ 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
29. 29.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a balloon (c) a tray for spills (d) sugar
31. 31.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) baking soda (d) a battery cell
32. 32.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) outside air gets in (d) the bottle shrinks
33. 33.True or false: lemon juice is neutral. (a) False (b) True
34. 34.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) curd (b) salt water (c) tamarind water (d) orange juice
36. 36.True or false: curd is neutral. (a) False (b) True
37. 37.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
38. 38.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) an empty bottle (c) vinegar (d) a battery cell
39. 39.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a comb (c) sugar (d) baking soda
40. 40.⚖️ 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

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