Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 765 · 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.True or false: lemon juice is a base. (a) False (b) True
2. 2.🫧 Which of these is neutral? (a) orange juice (b) soap solution (c) detergent water (d) salt water
3. 3.🔍 Which is the odd one out? (a) salt water (b) sugar water (c) plain water (d) baking soda water
4. 4.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) the balloon bursts (c) a huge eruption (d) very little fizzing
5. 5.⚖️ 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
6. 6.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
7. 7.⚖️ 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
8. 8.📘 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
9. 9.True or false: tamarind water is an acid. (a) False (b) True
10. 10.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) the amount of vinegar (c) the kind of balloon (d) spoons of baking soda
11. 11.🔍 Which is the odd one out? (a) detergent water (b) curd (c) soap solution (d) baking soda water
12. 12.🧺 Do we need a balloon for the fizzy balloon? (a) not needed (b) needed
13. 13.True or false: a seed is not needed for the fizzy balloon. (a) False (b) True
14. 14.⚖️ 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 change it (c) we keep it the same
15. 15.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
16. 16.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) neutral (c) an acid
18. 18.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) baking soda (c) a tray for spills (d) sugar
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the amount of vinegar (b) the same bottle (c) size of the balloon (d) spoons of baking soda
20. 20.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
21. 21.⚖️ 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
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a mirror (c) baking soda (d) an empty bottle
24. 24.🫧 Which of these is an acid? (a) salt water (b) baking soda water (c) lemon juice (d) soap solution
25. 25.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) keep it away from eyes (c) seal it in a glass jar (d) put it in your mouth
26. 26.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it glows in the dark (c) it turns to ice (d) lots of fizzy bubbles
27. 27.📘 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
28. 28.🧺 Do we need vinegar for the fizzy balloon? (a) needed (b) not needed
29. 29.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) hydrogen (c) carbon dioxide (d) helium
30. 30.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
31. 31.🔮 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
32. 32.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) an acid (c) a base
33. 33.🫧 Which of these is an acid? (a) sugar water (b) baking soda water (c) vinegar (d) detergent water
34. 34.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a balloon (c) a magnet (d) a mirror
35. 35.🫧 Which of these is neutral? (a) lemon juice (b) soap solution (c) sugar water (d) orange juice
36. 36.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a seed (c) a battery cell (d) a funnel or spoon
37. 37.🫧 Which of these is an acid? (a) tamarind water (b) salt water (c) baking soda water (d) sugar water
38. 38.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a mirror (c) a tray for spills (d) vinegar
39. 39.🫧 Which of these is a base? (a) curd (b) salt water (c) tamarind water (d) soap solution
40. 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) sugar (c) vinegar (d) baking soda

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