Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 826 · 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 float apart (b) they become magnets (c) they freeze (d) they react
2. 2.🛟 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
3. 3.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) lemon juice (d) salt water
4. 4.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
5. 5.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) sugar (c) a balloon (d) baking soda
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the bottle got tired (c) an ingredient ran out (d) the gas froze
8. 8.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) ignore it (c) rub it hard (d) rinse with clean water
9. 9.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) an empty bottle (c) a tray for spills (d) a comb
11. 11.🫧 Which of these is neutral? (a) soap solution (b) salt water (c) detergent water (d) lemon juice
12. 12.🔮 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
13. 13.🧺 Which of these is needed for the fizzy balloon? (a) a balloon (b) a seed (c) a magnet (d) a comb
14. 14.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) it is only melting (c) no, nothing changes (d) yes, a new gas forms
15. 15.🔍 Which is the odd one out? (a) plain water (b) sugar water (c) detergent water (d) salt water
16. 16.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) sugar (c) an empty bottle (d) a balloon
17. 17.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) there is no change (c) it turns blue (d) it shrinks
18. 18.🧺 Do we need a magnet for the fizzy balloon? (a) needed (b) not needed
19. 19.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
20. 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) a seed (d) a tray for spills
21. 21.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) hydrogen (c) carbon dioxide (d) helium
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is the one thing we change. (a) True (b) False
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 a base? (a) baking soda water (b) tamarind water (c) vinegar (d) curd
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a magnet (b) an empty bottle (c) a balloon (d) a funnel or spoon
26. 26.True or false: vinegar is a base. (a) False (b) True
27. 27.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
28. 28.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a battery cell (c) an empty bottle (d) vinegar
29. 29.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
30. 30.🫧 Which of these is an acid? (a) orange juice (b) soap solution (c) salt water (d) detergent water
31. 31.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) an empty bottle (c) a magnet (d) a mirror
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) True (b) False
33. 33.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) neutral (c) a base
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) a magnet (c) a funnel or spoon (d) an empty bottle
35. 35.⚖️ 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) False (b) True
36. 36.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) the same bottle (b) the amount of vinegar (c) spoons of baking soda (d) size of the balloon
37. 37.True or false: a funnel or spoon is not needed for the fizzy balloon. (a) False (b) True
38. 38.True or false: soap solution is a base. (a) False (b) True
39. 39.⚖️ 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 change it (c) we measure it
40. 40.⚖️ 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

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