Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 205 · 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 safety rule fits the fizzy balloon experiment? (a) keep it away from eyes (b) put it in your mouth (c) shake it near your face (d) seal it in a glass jar
2. 2.🫧 Which of these is an acid? (a) soap solution (b) tamarind water (c) salt water (d) detergent water
3. 3.🧺 Which of these is needed for the fizzy balloon? (a) a seed (b) a balloon (c) a battery cell (d) a magnet
4. 4.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
5. 5.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they react (c) they become magnets (d) they float apart
6. 6.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
7. 7.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) the bottle shrinks (d) gas is made inside
8. 8.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
9. 9.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a magnet (c) baking soda (d) vinegar
11. 11.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the kind of balloon (b) size of the balloon (c) the same bottle (d) spoons of baking soda
13. 13.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we measure it (c) we change it
14. 14.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) baking soda (c) vinegar (d) sugar
15. 15.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) curd (d) soap solution
16. 16.True or false: orange juice is an acid. (a) True (b) False
17. 17.🧺 Which of these is needed for the fizzy balloon? (a) a tray for spills (b) a mirror (c) a seed (d) a comb
18. 18.🔍 Which is the odd one out? (a) salt water (b) plain water (c) sugar water (d) detergent water
19. 19.🔍 Which is the odd one out? (a) vinegar (b) orange juice (c) tamarind water (d) baking soda water
20. 20.🫧 Which of these is neutral? (a) lemon juice (b) sugar water (c) tamarind water (d) curd
21. 21.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) sugar (c) a funnel or spoon (d) baking soda
22. 22.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a balloon (c) baking soda (d) vinegar
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the amount of vinegar is kept the same. (a) False (b) True
24. 24.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) baking soda (c) a battery cell (d) a comb
25. 25.🫧 What do you see when baking soda meets vinegar? (a) nothing at all (b) it turns to ice (c) lots of fizzy bubbles (d) it glows in the dark
26. 26.True or false: plain water is neutral. (a) False (b) True
27. 27.⚖️ 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 keep it the same (c) we change it
28. 28.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a mirror (c) a comb (d) vinegar
29. 29.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it turns blue (c) it shrinks (d) it grows bigger
30. 30.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
31. 31.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) neutral (c) an acid
32. 32.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the bottle got tired (c) the balloon got cold (d) an ingredient ran out
33. 33.⚖️ 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
34. 34.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) a huge eruption (c) it turns to honey (d) the balloon bursts
35. 35.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) no, nothing changes (c) it is only melting (d) yes, a new gas forms
36. 36.True or false: a tray for spills is not needed for the fizzy balloon. (a) False (b) True
37. 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a tray for spills (c) a comb (d) vinegar
38. 38.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
39. 39.🫧 Which of these is an acid? (a) plain water (b) detergent water (c) orange juice (d) baking soda water
40. 40.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True

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