Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 454 · 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.🫧 Which of these is a base? (a) plain water (b) baking soda water (c) vinegar (d) lemon juice
2. 2.🫧 Is plain water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
3. 3.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) plain water (d) soap solution
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) baking soda (c) a funnel or spoon (d) sugar
5. 5.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rinse with clean water (c) rub it hard (d) add baking soda
6. 6.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) orange juice
7. 7.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
8. 8.⚖️ 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
9. 9.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it glows in the dark (c) it turns to ice (d) lots of fizzy bubbles
10. 10.True or false: lemon juice is an acid. (a) True (b) False
11. 11.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) seal it in a glass jar (c) shake it near your face (d) keep it away from eyes
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the kind of balloon (c) size of the balloon
13. 13.⚖️ 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
14. 14.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it grows bigger (c) it shrinks (d) it turns blue
15. 15.🔍 Which is the odd one out? (a) plain water (b) soap solution (c) baking soda water (d) detergent water
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is the one thing we change. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) detergent water (d) lemon juice
18. 18.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True
19. 19.⚖️ 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 amount of vinegar (d) spoons of baking soda
20. 20.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
21. 21.True or false: detergent water is an acid. (a) True (b) False
22. 22.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) no, nothing changes (c) it is only melting (d) it is only dissolving
23. 23.True or false: curd is a base. (a) True (b) False
24. 24.True or false: curd is an acid. (a) True (b) False
25. 25.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
26. 26.🧺 Which of these is needed for the fizzy balloon? (a) a balloon (b) sugar (c) a battery cell (d) a mirror
27. 27.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
28. 28.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a comb (c) a battery cell (d) an empty bottle
29. 29.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) it turns to honey (c) the balloon bursts (d) a huge eruption
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
31. 31.🧺 Which of these is not needed for the fizzy balloon? (a) a magnet (b) baking soda (c) a funnel or spoon (d) a balloon
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we keep it the same (b) we change it (c) we measure it
33. 33.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) False (b) True
34. 34.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
35. 35.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a comb (c) baking soda (d) a mirror
36. 36.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a battery cell (c) a balloon (d) a tray for spills
37. 37.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
38. 38.⚖️ 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
39. 39.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the gas froze (c) the balloon got cold (d) an ingredient ran out
40. 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a tray for spills (c) a battery cell (d) vinegar

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