Baking Soda and Vinegar Experiment Worksheet

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

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