Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 755 · 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.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) add baking soda (c) rinse with clean water (d) rub it hard
2. 2.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) sugar (c) a funnel or spoon (d) vinegar
3. 3.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) hydrogen (b) helium (c) oxygen (d) carbon dioxide
4. 4.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) nothing at all (c) it glows in the dark (d) lots of fizzy bubbles
5. 5.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) detergent water (d) curd
6. 6.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) an empty bottle (c) a seed (d) a balloon
7. 7.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a battery cell (c) a magnet (d) sugar
8. 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we change it (c) we measure it
9. 9.True or false: curd is an acid. (a) True (b) False
10. 10.True or false: salt water is neutral. (a) False (b) True
11. 11.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
12. 12.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) there is no change (c) it grows bigger (d) it shrinks
13. 13.True or false: a comb is needed for the fizzy balloon. (a) False (b) True
14. 14.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) False (b) True
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a funnel or spoon (c) a balloon (d) a magnet
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) vinegar (c) a balloon (d) baking soda
18. 18.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the amount of vinegar (b) the kind of balloon (c) size of the balloon (d) spoons of baking soda
20. 20.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
21. 21.⚖️ 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
22. 22.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the gas froze (c) an ingredient ran out (d) the bottle got tired
23. 23.True or false: lemon juice is an acid. (a) False (b) True
24. 24.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a tray for spills (c) vinegar (d) a mirror
26. 26.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) the balloon bursts (c) a huge eruption (d) it turns to honey
27. 27.True or false: a magnet is needed for the fizzy balloon. (a) False (b) True
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
29. 29.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) an empty bottle (c) a balloon (d) a mirror
30. 30.⚖️ 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
31. 31.True or false: detergent water is neutral. (a) True (b) False
32. 32.True or false: orange juice is a base. (a) True (b) False
33. 33.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
34. 34.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) an acid (c) a base
35. 35.🫧 Which of these is neutral? (a) vinegar (b) orange juice (c) lemon juice (d) sugar water
36. 36.⚖️ 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) True (b) False
37. 37.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
38. 38.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) shake it near your face (c) seal it in a glass jar (d) keep it away from eyes
39. 39.⚖️ 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 keep it the same (c) we measure it
40. 40.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) the bottle shrinks (d) outside air gets in

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