Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 591 · 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.⚖️ 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) the kind of balloon (d) size of the balloon
2. 2.True or false: tamarind water is an acid. (a) False (b) True
3. 3.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) no, nothing changes (c) yes, a new gas forms (d) it is only melting
4. 4.⚖️ 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
5. 5.⚖️ 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
6. 6.🛟 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
7. 7.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) baking soda (c) vinegar (d) an empty bottle
8. 8.True or false: lemon juice is neutral. (a) True (b) False
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the same bottle (c) size of the balloon
10. 10.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the gas froze (c) an ingredient ran out (d) the bottle got tired
11. 11.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
12. 12.🔍 Which is the odd one out? (a) curd (b) sugar water (c) salt water (d) plain water
13. 13.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a balloon (c) a battery cell (d) vinegar
14. 14.⚖️ 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 change it (c) we measure it
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is what we measure. (a) False (b) True
16. 16.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) an empty bottle (c) a funnel or spoon (d) a mirror
17. 17.True or false: baking soda water is a base. (a) False (b) True
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the kind of balloon (b) spoons of baking soda (c) the same bottle (d) size of the balloon
19. 19.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
20. 20.🔍 Which is the odd one out? (a) plain water (b) detergent water (c) salt water (d) sugar water
21. 21.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
22. 22.⚖️ 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 change it (c) we keep it the same
23. 23.🔍 Which is the odd one out? (a) plain water (b) salt water (c) sugar water (d) baking soda water
24. 24.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) nothing at all (c) lots of fizzy bubbles (d) it glows in the dark
25. 25.🫧 Which of these is an acid? (a) baking soda water (b) soap solution (c) plain water (d) tamarind water
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.🫧 Which of these is neutral? (a) detergent water (b) sugar water (c) curd (d) lemon juice
28. 28.⚖️ 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
29. 29.⚖️ 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) True (b) False
30. 30.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
31. 31.True or false: lemon juice is an acid. (a) False (b) True
32. 32.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a comb (c) a mirror (d) a funnel or spoon
33. 33.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
34. 34.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) seal it in a glass jar (d) shake it near your face
35. 35.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) baking soda (c) a tray for spills (d) a magnet
36. 36.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) an acid (c) neutral
37. 37.🔍 Which is the odd one out? (a) curd (b) soap solution (c) lemon juice (d) vinegar
38. 38.🧺 Which of these is needed for the fizzy balloon? (a) a tray for spills (b) a magnet (c) a battery cell (d) sugar
39. 39.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) there is no change (c) it grows bigger (d) it turns blue
40. 40.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed

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