Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 470 · 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 not needed for the fizzy balloon? (a) baking soda (b) an empty bottle (c) a battery cell (d) a funnel or spoon
2. 2.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) helium (c) oxygen (d) hydrogen
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.⚖️ 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 same bottle
5. 5.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) very little fizzing (c) a huge eruption (d) the balloon bursts
6. 6.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it grows bigger (c) there is no change (d) it turns blue
7. 7.🔍 Which is the odd one out? (a) lemon juice (b) orange juice (c) plain water (d) vinegar
8. 8.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) salt water (d) detergent water
9. 9.⚖️ 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
10. 10.⚖️ 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
11. 11.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) it glows in the dark (c) nothing at all (d) lots of fizzy bubbles
12. 12.🛟 What should you do if vinegar splashes in your eye? (a) ignore it (b) rinse with clean water (c) rub it hard (d) add baking soda
13. 13.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
14. 14.🛟 Which safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) shake it near your face (c) seal it in a glass jar (d) put it in your mouth
15. 15.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
16. 16.True or false: baking soda water is a base. (a) False (b) True
17. 17.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a mirror (c) a funnel or spoon (d) a seed
18. 18.🫧 Which of these is neutral? (a) soap solution (b) orange juice (c) baking soda water (d) sugar water
19. 19.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) an empty bottle (c) a seed (d) vinegar
20. 20.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
21. 21.⚖️ 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
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the same bottle (b) the amount of vinegar (c) the kind of balloon (d) spoons of baking soda
23. 23.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
24. 24.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
25. 25.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
27. 27.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
28. 28.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) False (b) True
29. 29.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a seed (c) sugar (d) a comb
30. 30.🫧 Which of these is an acid? (a) soap solution (b) baking soda water (c) sugar water (d) vinegar
31. 31.True or false: lemon juice is neutral. (a) True (b) False
32. 32.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a mirror (c) a funnel or spoon (d) baking soda
33. 33.🔮 The fizzing stops after a while. Why? (a) the bottle got tired (b) the balloon got cold (c) the gas froze (d) an ingredient ran out
34. 34.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
35. 35.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they float apart (c) they become magnets (d) they react
36. 36.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
37. 37.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
38. 38.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a comb (c) a balloon (d) a mirror
39. 39.🎈 Why does the balloon blow up? (a) outside air gets in (b) vinegar is hot (c) gas is made inside (d) the bottle shrinks
40. 40.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True

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