Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 592 · 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: tamarind water is neutral. (a) True (b) False
2. 2.True or false: baking soda is not needed for the fizzy balloon. (a) False (b) True
3. 3.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) rinse with clean water (c) ignore it (d) add baking soda
4. 4.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it turns blue (b) there is no change (c) it grows bigger (d) it shrinks
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) a tray for spills (c) baking soda (d) sugar
6. 6.⚖️ 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
7. 7.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
8. 8.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) very little fizzing (c) it turns to honey (d) the balloon bursts
9. 9.📘 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
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) vinegar (c) a battery cell (d) a tray for spills
11. 11.⚖️ 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
12. 12.⚖️ 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 keep it the same (c) we measure it
13. 13.🔍 Which is the odd one out? (a) lemon juice (b) vinegar (c) detergent water (d) tamarind water
14. 14.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
15. 15.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) an ingredient ran out (c) the bottle got tired (d) the balloon got cold
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.🧺 Which of these is needed for the fizzy balloon? (a) baking soda (b) a magnet (c) a seed (d) a comb
18. 18.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
19. 19.🧺 Do we need a tray for spills for the fizzy balloon? (a) not needed (b) needed
20. 20.True or false: lemon juice is neutral. (a) False (b) True
21. 21.True or false: vinegar is needed for the fizzy balloon. (a) False (b) True
22. 22.🫧 Which of these is an acid? (a) baking soda water (b) sugar water (c) tamarind water (d) soap solution
23. 23.🫧 Which of these is a base? (a) plain water (b) soap solution (c) orange juice (d) tamarind water
24. 24.⚖️ 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 same bottle (c) spoons of baking soda
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a comb (c) a balloon (d) baking soda
26. 26.⚖️ 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) spoons of baking soda (d) size of the balloon
27. 27.⚖️ 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 keep it the same (c) we change it
28. 28.⚖️ 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) size of the balloon (d) the same bottle
29. 29.🧺 Do we need sugar for the fizzy balloon? (a) not needed (b) needed
30. 30.True or false: salt water is an acid. (a) True (b) False
31. 31.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
32. 32.⚖️ 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 kind of balloon
33. 33.🫧 Which of these is a base? (a) salt water (b) sugar water (c) plain water (d) baking soda water
34. 34.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
35. 35.True or false: sugar water is a base. (a) True (b) False
36. 36.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) shake it near your face (d) seal it in a glass jar
37. 37.True or false: soap solution is neutral. (a) True (b) False
38. 38.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a tray for spills (c) a comb (d) a balloon
39. 39.🧺 Which of these is not needed for the fizzy balloon? (a) a battery cell (b) a tray for spills (c) baking soda (d) an empty bottle
40. 40.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) baking soda (c) a funnel or spoon (d) a magnet

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