Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 880 · 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.🎈 Why does the balloon blow up? (a) vinegar is hot (b) gas is made inside (c) outside air gets in (d) the bottle shrinks
2. 2.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) a base (c) an acid
3. 3.🛟 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
4. 4.⚖️ 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
5. 5.🧺 Which of these is not needed for the fizzy balloon? (a) a battery cell (b) vinegar (c) a tray for spills (d) an empty bottle
6. 6.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) vinegar (d) soap solution
7. 7.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) very little fizzing (c) a huge eruption (d) it turns to honey
8. 8.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) ignore it (c) add baking soda (d) rub it hard
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) True (b) False
10. 10.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
11. 11.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
12. 12.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they become magnets (c) they freeze (d) they react
13. 13.True or false: sugar water is neutral. (a) False (b) True
14. 14.⚖️ 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
15. 15.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) a balloon (c) an empty bottle (d) a funnel or spoon
16. 16.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it shrinks (c) there is no change (d) it turns blue
17. 17.🧺 Do we need baking soda for the fizzy balloon? (a) not needed (b) needed
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) baking soda (c) a tray for spills (d) sugar
19. 19.🫧 Which of these is neutral? (a) baking soda water (b) sugar water (c) orange juice (d) tamarind water
20. 20.⚖️ 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
21. 21.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a comb (c) baking soda (d) a funnel or spoon
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) plain water (b) tamarind water (c) salt water (d) sugar water
24. 24.🧺 Which of these is needed for the fizzy balloon? (a) a balloon (b) a mirror (c) a seed (d) a battery cell
25. 25.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a comb (c) sugar (d) a funnel or spoon
26. 26.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) a battery cell (d) a funnel or spoon
28. 28.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) lemon juice (d) detergent water
29. 29.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) vinegar (c) sugar (d) a comb
30. 30.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
31. 31.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) nothing at all (c) it glows in the dark (d) it turns to ice
32. 32.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
33. 33.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) vinegar (c) a seed (d) a balloon
34. 34.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) a magnet (d) a balloon
35. 35.True or false: a battery cell is not needed for the fizzy balloon. (a) True (b) False
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) False (b) True
37. 37.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
38. 38.⚖️ 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 measure it (c) we change it
39. 39.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) size of the balloon (c) the amount of vinegar (d) spoons of baking soda
40. 40.🫧 Which of these is an acid? (a) plain water (b) tamarind water (c) salt water (d) detergent water

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