Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 844 · 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 an empty bottle for the fizzy balloon? (a) not needed (b) needed
2. 2.🫧 Which of these is an acid? (a) sugar water (b) salt water (c) detergent water (d) tamarind water
3. 3.⚖️ 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
4. 4.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a balloon (c) a funnel or spoon (d) a seed
5. 5.🎈 Why does the balloon blow up? (a) the bottle shrinks (b) vinegar is hot (c) outside air gets in (d) gas is made inside
6. 6.🫧 Which of these is neutral? (a) soap solution (b) tamarind water (c) orange juice (d) plain water
7. 7.🔍 Which is the odd one out? (a) baking soda water (b) sugar water (c) soap solution (d) detergent water
8. 8.🫧 Which of these is a base? (a) vinegar (b) baking soda water (c) lemon juice (d) sugar water
9. 9.True or false: tamarind water is a base. (a) False (b) True
10. 10.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) it shrinks (d) there is no change
11. 11.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
12. 12.True or false: soap solution is a base. (a) False (b) True
13. 13.True or false: vinegar is not needed for the fizzy balloon. (a) False (b) True
14. 14.🔮 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
15. 15.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) size of the balloon (c) the kind of balloon (d) the amount of vinegar
17. 17.⚖️ 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 measure it (c) we change it
18. 18.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) it turns to honey (c) very little fizzing (d) a huge eruption
19. 19.True or false: orange juice is neutral. (a) True (b) False
20. 20.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a battery cell (c) a magnet (d) a tray for spills
21. 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) a magnet (d) baking soda
22. 22.⚖️ 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
23. 23.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a funnel or spoon (c) a comb (d) a tray for spills
24. 24.🫧 Which of these is an acid? (a) sugar water (b) detergent water (c) plain water (d) vinegar
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) a mirror (d) a funnel or spoon
26. 26.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
27. 27.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
28. 28.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
29. 29.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
30. 30.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
31. 31.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a magnet (c) baking soda (d) a battery cell
32. 32.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) rinse with clean water (d) ignore it
33. 33.🫧 Which of these is an acid? (a) detergent water (b) baking soda water (c) lemon juice (d) salt water
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a tray for spills (c) a seed (d) baking soda
35. 35.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) False (b) True
36. 36.True or false: a mirror is needed for the fizzy balloon. (a) True (b) False
37. 37.⚖️ 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) spoons of baking soda (c) the kind of balloon (d) the same bottle
38. 38.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) shake it near your face (d) seal it in a glass jar
39. 39.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they float apart (c) they react (d) they become magnets
40. 40.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True

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