Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 802 · 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.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they become magnets (c) they float apart (d) they react
2. 2.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) an empty bottle (c) a battery cell (d) sugar
3. 3.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) shake it near your face (d) put it in your mouth
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) True (b) False
5. 5.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.🔍 Which is the odd one out? (a) tamarind water (b) orange juice (c) baking soda water (d) lemon juice
8. 8.True or false: a seed is needed for the fizzy balloon. (a) False (b) True
9. 9.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a comb (c) an empty bottle (d) a balloon
10. 10.⚖️ 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
11. 11.True or false: vinegar is needed for the fizzy balloon. (a) True (b) False
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) True (b) False
13. 13.🫧 Which of these is neutral? (a) plain water (b) orange juice (c) tamarind water (d) baking soda water
14. 14.🛟 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
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) size of the balloon (c) spoons of baking soda (d) the kind of balloon
16. 16.⚖️ 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
17. 17.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the balloon got cold (c) the bottle got tired (d) the gas froze
18. 18.🫧 What do you see when baking soda meets vinegar? (a) it glows in the dark (b) it turns to ice (c) lots of fizzy bubbles (d) nothing at all
19. 19.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) very little fizzing (d) it turns to honey
20. 20.🔍 Which is the odd one out? (a) tamarind water (b) vinegar (c) orange juice (d) detergent water
21. 21.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a tray for spills (c) a balloon (d) a magnet
23. 23.⚖️ 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
24. 24.🧺 Do we need a comb for the fizzy balloon? (a) needed (b) not needed
25. 25.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) soap solution (d) salt water
26. 26.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is what we measure. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) baking soda water (b) orange juice (c) detergent water (d) soap solution
28. 28.True or false: baking soda water is a base. (a) False (b) True
29. 29.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) it shrinks (d) there is no change
30. 30.🫧 Which of these is an acid? (a) plain water (b) detergent water (c) sugar water (d) tamarind water
31. 31.True or false: orange juice is a base. (a) True (b) False
32. 32.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a comb (c) vinegar (d) a battery cell
33. 33.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) no, nothing changes (c) it is only dissolving (d) yes, a new gas forms
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) an empty bottle (c) a balloon (d) a magnet
35. 35.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) vinegar (c) an empty bottle (d) a tray for spills
36. 36.🧺 Do we need sugar for the fizzy balloon? (a) needed (b) not needed
37. 37.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
38. 38.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a magnet (c) a comb (d) baking soda
39. 39.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
40. 40.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed

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