Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 956 · 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.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) sugar (c) baking soda (d) vinegar
2. 2.🫧 Which of these is an acid? (a) sugar water (b) detergent water (c) tamarind water (d) salt water
3. 3.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) the balloon bursts (d) very little fizzing
4. 4.⚖️ 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 change it (c) we measure it
5. 5.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it turns blue (d) it grows bigger
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
7. 7.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the bottle got tired (c) the gas froze (d) an ingredient ran out
8. 8.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) it glows in the dark (c) it turns to ice (d) nothing at all
9. 9.⚖️ 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
10. 10.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) sugar (c) a magnet (d) a tray for spills
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a balloon (c) a funnel or spoon (d) a magnet
12. 12.⚖️ 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 change it (c) we measure it
13. 13.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a seed (c) vinegar (d) a funnel or spoon
14. 14.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a funnel or spoon (c) a mirror (d) a battery cell
15. 15.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a mirror (c) an empty bottle (d) a balloon
16. 16.🧺 Which of these is needed for the fizzy balloon? (a) a comb (b) a seed (c) a battery cell (d) baking soda
17. 17.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) put it in your mouth (c) seal it in a glass jar (d) keep it away from eyes
18. 18.🎈 Why does the balloon blow up? (a) outside air gets in (b) gas is made inside (c) vinegar is hot (d) the bottle shrinks
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we measure it (c) we change it
20. 20.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rinse with clean water (c) add baking soda (d) rub it hard
21. 21.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
22. 22.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) detergent water (d) orange juice
23. 23.🫧 Which of these is an acid? (a) detergent water (b) soap solution (c) lemon juice (d) plain water
24. 24.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) False (b) True
25. 25.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
26. 26.⚖️ 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 kind of balloon (c) spoons of baking soda
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a tray for spills (c) a comb (d) a balloon
28. 28.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) the amount of vinegar (c) size of the balloon (d) the same bottle
30. 30.⚖️ 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
31. 31.🔍 Which is the odd one out? (a) detergent water (b) sugar water (c) plain water (d) salt water
32. 32.True or false: sugar water is neutral. (a) True (b) False
33. 33.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
34. 34.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
35. 35.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) neutral (c) a base
36. 36.⚖️ 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
37. 37.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
38. 38.True or false: a funnel or spoon is needed for the fizzy balloon. (a) True (b) False
39. 39.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) it is only dissolving (c) it is only melting (d) yes, a new gas forms
40. 40.⚖️ 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

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