Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 123 · 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.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
2. 2.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) vinegar (c) sugar (d) an empty bottle
3. 3.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they react (b) they become magnets (c) they freeze (d) they float apart
4. 4.🔍 Which is the odd one out? (a) vinegar (b) orange juice (c) sugar water (d) lemon juice
5. 5.True or false: a funnel or spoon is needed for the fizzy balloon. (a) False (b) True
6. 6.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
7. 7.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is kept the same. (a) True (b) False
8. 8.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) size of the balloon (c) the kind of balloon (d) the same bottle
9. 9.🛟 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
10. 10.⚖️ 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
11. 11.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
12. 12.📘 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
13. 13.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) soap solution (d) plain water
14. 14.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
15. 15.True or false: salt water is neutral. (a) True (b) False
16. 16.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) a tray for spills (c) baking soda (d) a mirror
17. 17.🧺 Do we need a battery cell for the fizzy balloon? (a) not needed (b) needed
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) spoons of baking soda (b) the kind of balloon (c) the amount of vinegar (d) size of the balloon
19. 19.⚖️ 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 keep it the same (c) we measure it
20. 20.🫧 Which of these is neutral? (a) vinegar (b) detergent water (c) tamarind water (d) salt water
21. 21.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) vinegar (c) baking soda (d) a funnel or spoon
22. 22.⚖️ 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
23. 23.🔍 Which is the odd one out? (a) plain water (b) salt water (c) sugar water (d) vinegar
24. 24.🧺 Which of these is needed for the fizzy balloon? (a) a mirror (b) a tray for spills (c) a comb (d) a seed
25. 25.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a mirror (c) vinegar (d) a tray for spills
26. 26.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) helium (b) oxygen (c) hydrogen (d) carbon dioxide
27. 27.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
28. 28.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
29. 29.True or false: sugar water is neutral. (a) True (b) False
30. 30.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) add baking soda (c) ignore it (d) rinse with clean water
31. 31.⚖️ 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
32. 32.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) it turns to honey (c) the balloon bursts (d) very little fizzing
33. 33.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a seed (c) baking soda (d) an empty bottle
35. 35.⚖️ 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
36. 36.⚖️ 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) True (b) False
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is kept the same. (a) False (b) True
38. 38.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the bottle got tired (c) an ingredient ran out (d) the balloon got cold
39. 39.True or false: lemon juice is a base. (a) True (b) False
40. 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a comb (b) a tray for spills (c) baking soda (d) a balloon

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