Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 600 · 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: orange juice is an acid. (a) True (b) False
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) False (b) True
3. 3.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) a base (c) neutral
4. 4.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
5. 5.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they react (c) they freeze (d) they become magnets
6. 6.⚖️ 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
7. 7.True or false: a balloon is needed for the fizzy balloon. (a) True (b) False
8. 8.True or false: curd is neutral. (a) True (b) False
9. 9.True or false: sugar is needed for the fizzy balloon. (a) True (b) False
10. 10.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a funnel or spoon (c) a comb (d) vinegar
11. 11.🫧 Is plain 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? What do we do with “the amount of vinegar”? (a) we change it (b) we keep it the same (c) we measure it
13. 13.📘 Is the fizzing a sign that a new substance is made? (a) no, nothing changes (b) yes, a new gas forms (c) it is only dissolving (d) it is only melting
14. 14.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
15. 15.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) baking soda (c) a seed (d) a mirror
16. 16.🔮 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
17. 17.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a mirror (c) sugar (d) a funnel or spoon
18. 18.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) plain water (d) baking soda water
19. 19.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) hydrogen (c) helium (d) oxygen
20. 20.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) keep it away from eyes (c) seal it in a glass jar (d) put it in your mouth
21. 21.True or false: vinegar is an acid. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) lemon juice (b) orange juice (c) vinegar (d) soap solution
23. 23.⚖️ 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
24. 24.True or false: a comb is not needed for the fizzy balloon. (a) False (b) True
25. 25.🧺 Which of these is not needed for the fizzy balloon? (a) a mirror (b) vinegar (c) a balloon (d) a funnel or spoon
26. 26.True or false: a tray for spills is needed for the fizzy balloon. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) tamarind water (b) soap solution (c) detergent water (d) baking soda water
28. 28.True or false: a battery cell is needed for the fizzy balloon. (a) False (b) True
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is the one thing we change? (a) size of the balloon (b) the kind of balloon (c) spoons of baking soda (d) the amount of vinegar
30. 30.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a seed (c) a mirror (d) vinegar
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 change it (c) we measure it
32. 32.🔍 Which is the odd one out? (a) plain water (b) salt water (c) sugar water (d) baking soda water
33. 33.🔍 Which is the odd one out? (a) lemon juice (b) plain water (c) salt water (d) sugar water
34. 34.⚖️ 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
35. 35.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
36. 36.🫧 What do you see when baking soda meets vinegar? (a) lots of fizzy bubbles (b) it glows in the dark (c) it turns to ice (d) nothing at all
37. 37.⚖️ 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
38. 38.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) there is no change (b) it grows bigger (c) it turns blue (d) it shrinks
39. 39.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
40. 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) baking soda (c) a battery cell (d) a funnel or spoon

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