Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 170 · 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.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) the kind of balloon (c) the amount of vinegar (d) size of the balloon
3. 3.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) detergent water (d) plain water
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is the one thing we change. (a) True (b) False
5. 5.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the bottle got tired (c) the gas froze (d) an ingredient ran out
6. 6.⚖️ 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
7. 7.True or false: vinegar is an acid. (a) True (b) False
8. 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a seed (c) baking soda (d) an empty bottle
9. 9.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a seed (c) a battery cell (d) a tray for spills
10. 10.📘 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
11. 11.🔮 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
12. 12.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a balloon (c) a tray for spills (d) an empty bottle
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 kind of balloon (c) the amount of vinegar (d) size of the balloon
14. 14.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) hydrogen (c) carbon dioxide (d) helium
15. 15.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a comb (c) sugar (d) baking soda
16. 16.🔍 Which is the odd one out? (a) sugar water (b) baking soda water (c) plain water (d) salt water
17. 17.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
18. 18.🫧 Which of these is an acid? (a) sugar water (b) plain water (c) detergent water (d) orange juice
19. 19.🫧 Which of these is a base? (a) baking soda water (b) plain water (c) vinegar (d) sugar water
20. 20.True or false: a mirror is not needed for the fizzy balloon. (a) True (b) False
21. 21.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) it glows in the dark (c) nothing at all (d) it turns to ice
22. 22.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
23. 23.⚖️ 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
24. 24.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it shrinks (c) it turns blue (d) there is no change
25. 25.True or false: orange juice is an acid. (a) True (b) False
26. 26.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) it is only melting (c) no, nothing changes (d) it is only dissolving
27. 27.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) curd (d) salt water
28. 28.🛟 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
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.🫧 Which of these is neutral? (a) lemon juice (b) soap solution (c) plain water (d) curd
31. 31.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
32. 32.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
33. 33.🫧 Which of these is an acid? (a) baking soda water (b) curd (c) plain water (d) soap solution
34. 34.⚖️ 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
35. 35.🫧 Which of these is an acid? (a) soap solution (b) plain water (c) baking soda water (d) tamarind water
36. 36.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
37. 37.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) vinegar (c) baking soda (d) sugar
38. 38.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
39. 39.⚖️ 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
40. 40.True or false: an empty bottle is not needed for the fizzy balloon. (a) False (b) True

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