Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 706 · 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.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) spoons of baking soda (c) the same bottle (d) size of the balloon
3. 3.⚖️ 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 keep it the same (c) we change it
4. 4.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) it is only dissolving (c) it is only melting (d) no, nothing changes
5. 5.True or false: plain water is neutral. (a) True (b) False
6. 6.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
7. 7.True or false: tamarind water is neutral. (a) True (b) False
8. 8.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
9. 9.⚖️ 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
10. 10.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a seed (c) a magnet (d) a balloon
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a funnel or spoon (c) sugar (d) baking soda
12. 12.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a funnel or spoon (c) a comb (d) a battery cell
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) the amount of vinegar (c) the kind of balloon (d) size of the balloon
14. 14.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
15. 15.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) seal it in a glass jar (d) shake it near your face
16. 16.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
17. 17.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) it turns to honey (d) a huge eruption
18. 18.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
19. 19.🔍 Which is the odd one out? (a) soap solution (b) lemon juice (c) baking soda water (d) detergent water
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we change it (c) we measure it
21. 21.⚖️ 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
22. 22.True or false: tamarind water is an acid. (a) False (b) True
23. 23.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
24. 24.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) a balloon (c) baking soda (d) vinegar
25. 25.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
26. 26.True or false: orange juice is an acid. (a) False (b) True
27. 27.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
28. 28.⚖️ 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 change it (c) we keep it the same
29. 29.🔍 Which is the odd one out? (a) tamarind water (b) sugar water (c) plain water (d) salt water
30. 30.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it turns blue (d) it grows bigger
31. 31.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
32. 32.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a tray for spills (c) a seed (d) a balloon
33. 33.🛟 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
34. 34.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) an acid (c) a base
35. 35.🫧 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
36. 36.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
37. 37.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they react (d) they float apart
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) an empty bottle (c) a mirror (d) baking soda
39. 39.🔍 Which is the odd one out? (a) sugar water (b) baking soda water (c) salt water (d) plain water
40. 40.🫧 Which of these is a base? (a) lemon juice (b) detergent water (c) tamarind water (d) orange juice

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