Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 656 · 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.🔮 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 shrinks (d) it grows bigger
2. 2.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) the bottle shrinks (d) gas is made inside
3. 3.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) an empty bottle (c) a tray for spills (d) sugar
4. 4.⚖️ 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
5. 5.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) keep it away from eyes (d) put it in your mouth
6. 6.⚖️ 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) spoons of baking soda (d) the same bottle
7. 7.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a comb (c) a seed (d) a balloon
8. 8.🔍 Which is the odd one out? (a) tamarind water (b) baking soda water (c) vinegar (d) lemon juice
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) vinegar (c) a magnet (d) a funnel or spoon
10. 10.🔮 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
11. 11.⚖️ 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
12. 12.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
13. 13.🫧 Which of these is neutral? (a) curd (b) vinegar (c) plain water (d) detergent water
14. 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) a seed (d) a funnel or spoon
15. 15.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) vinegar (c) a comb (d) a mirror
16. 16.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
17. 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the same bottle (c) the kind of balloon (d) size of the balloon
18. 18.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) ignore it (c) rinse with clean water (d) rub it hard
19. 19.🫧 Which of these is neutral? (a) vinegar (b) sugar water (c) tamarind water (d) lemon juice
20. 20.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
21. 21.True or false: baking soda water is a base. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) salt water (b) curd (c) orange juice (d) lemon juice
23. 23.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
24. 24.🫧 Which of these is an acid? (a) detergent water (b) vinegar (c) soap solution (d) sugar water
25. 25.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
26. 26.⚖️ 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
27. 27.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the balloon got cold (c) the gas froze (d) the bottle got tired
28. 28.True or false: tamarind water is a base. (a) False (b) True
29. 29.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) an acid (c) a base
30. 30.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
31. 31.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
32. 32.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
33. 33.🫧 Which of these is a base? (a) sugar water (b) soap solution (c) lemon juice (d) orange juice
34. 34.⚖️ 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 amount of vinegar (c) size of the balloon
35. 35.⚖️ 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
36. 36.🔍 Which is the odd one out? (a) baking soda water (b) tamarind water (c) soap solution (d) detergent water
37. 37.🫧 Which of these is neutral? (a) vinegar (b) salt water (c) tamarind water (d) curd
38. 38.🫧 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
39. 39.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a mirror (c) a tray for spills (d) sugar
40. 40.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) helium (c) hydrogen (d) oxygen

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