Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 331 · 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: a funnel or spoon is not needed for the fizzy balloon. (a) False (b) True
2. 2.True or false: baking soda is not needed for the fizzy balloon. (a) True (b) False
3. 3.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) the balloon bursts (d) very little fizzing
4. 4.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) sugar (c) a seed (d) a balloon
5. 5.🔍 Which is the odd one out? (a) curd (b) lemon juice (c) tamarind water (d) baking soda water
6. 6.True or false: plain water is a base. (a) False (b) True
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) baking soda (c) an empty bottle (d) a balloon
8. 8.True or false: detergent water is a base. (a) True (b) False
9. 9.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) carbon dioxide (c) helium (d) hydrogen
10. 10.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a battery cell (c) an empty bottle (d) a seed
11. 11.True or false: salt water is an acid. (a) True (b) False
12. 12.🫧 Which of these is neutral? (a) curd (b) orange juice (c) sugar water (d) vinegar
13. 13.🎈 Why does the balloon blow up? (a) vinegar is hot (b) the bottle shrinks (c) outside air gets in (d) gas is made inside
14. 14.🧺 Do we need a comb 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 kept the same. (a) True (b) False
16. 16.🔮 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
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a battery cell (b) baking soda (c) vinegar (d) a balloon
18. 18.⚖️ 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
19. 19.True or false: a mirror is not needed for the fizzy balloon. (a) False (b) True
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda (d) the kind of balloon
21. 21.🛟 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
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a mirror (c) vinegar (d) a tray for spills
23. 23.True or false: a comb is needed for the fizzy balloon. (a) True (b) False
24. 24.⚖️ 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 amount of vinegar
25. 25.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they react (c) they float apart (d) they freeze
26. 26.🫧 Which of these is an acid? (a) orange juice (b) soap solution (c) sugar water (d) baking soda water
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a seed (c) vinegar (d) an empty bottle
28. 28.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) baking soda (c) a balloon (d) a magnet
29. 29.⚖️ 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) the kind of balloon (c) the same bottle (d) spoons of baking soda
30. 30.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the balloon got cold (c) the gas froze (d) an ingredient ran out
31. 31.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is the one thing we change. (a) False (b) True
32. 32.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) vinegar (c) a battery cell (d) a mirror
33. 33.⚖️ 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 keep it the same (c) we measure it
34. 34.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
35. 35.True or false: baking soda water is an acid. (a) True (b) False
36. 36.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
37. 37.True or false: an empty bottle is needed for the fizzy balloon. (a) True (b) False
38. 38.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
39. 39.True or false: vinegar is an acid. (a) True (b) False
40. 40.⚖️ 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 measure it (c) we change it

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