Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 385 · 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) tamarind water (c) salt water (d) baking soda water
2. 2.⚖️ 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
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) the amount of vinegar (c) spoons of baking soda
4. 4.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
5. 5.True or false: soap solution is neutral. (a) False (b) True
6. 6.True or false: sugar is not needed for the fizzy balloon. (a) True (b) False
7. 7.⚖️ 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) False (b) True
8. 8.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) vinegar (c) a balloon (d) baking soda
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
10. 10.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a funnel or spoon (c) a comb (d) vinegar
11. 11.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) nothing at all (c) lots of fizzy bubbles (d) it turns to ice
12. 12.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) a comb (d) baking soda
13. 13.📘 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 dissolving (d) it is only melting
14. 14.🔍 Which is the odd one out? (a) soap solution (b) salt water (c) baking soda water (d) detergent water
15. 15.🫧 Which of these is an acid? (a) sugar water (b) baking soda water (c) curd (d) detergent water
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) the amount of vinegar (c) size of the balloon (d) the same bottle
17. 17.🧺 Which of these is not needed for the fizzy balloon? (a) a magnet (b) a balloon (c) baking soda (d) a funnel or spoon
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a funnel or spoon (c) baking soda (d) a balloon
19. 19.🔍 Which is the odd one out? (a) plain water (b) vinegar (c) orange juice (d) tamarind water
20. 20.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
21. 21.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it turns blue (c) there is no change (d) it grows bigger
22. 22.🫧 Is plain water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
23. 23.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they freeze (c) they react (d) they become magnets
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.🎈 Why does the balloon blow up? (a) outside air gets in (b) gas is made inside (c) vinegar is hot (d) the bottle shrinks
26. 26.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) vinegar (c) a tray for spills (d) an empty bottle
28. 28.⚖️ 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
29. 29.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) True (b) False
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the kind of balloon
31. 31.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) True (b) False
32. 32.🫧 Which of these is a base? (a) detergent water (b) plain water (c) vinegar (d) orange juice
33. 33.⚖️ 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
34. 34.🫧 Which of these is neutral? (a) sugar water (b) tamarind water (c) lemon juice (d) detergent water
35. 35.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rub it hard (c) add baking soda (d) rinse with clean water
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we keep it the same (c) we change it
37. 37.True or false: salt water is an acid. (a) True (b) False
38. 38.🔮 Predict: you use plain water instead of vinegar. What happens? (a) the balloon bursts (b) it turns to honey (c) a huge eruption (d) very little fizzing
39. 39.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
40. 40.⚖️ 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 amount of vinegar (d) the kind of balloon

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