Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 790 · 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.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) size of the balloon (c) the amount of vinegar
2. 2.True or false: lemon juice is neutral. (a) True (b) False
3. 3.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) a tray for spills (c) a battery cell (d) vinegar
4. 4.🧺 Which of these is not needed for the fizzy balloon? (a) a comb (b) vinegar (c) baking soda (d) a tray for spills
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a balloon (c) baking soda (d) a magnet
6. 6.🧺 Do we need a mirror for the fizzy balloon? (a) needed (b) not needed
7. 7.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the bottle got tired (c) the balloon got cold (d) the gas froze
8. 8.🫧 Which of these is a base? (a) tamarind water (b) lemon juice (c) curd (d) soap solution
9. 9.True or false: sugar is needed for the fizzy balloon. (a) False (b) True
10. 10.True or false: a seed is not needed for the fizzy balloon. (a) True (b) False
11. 11.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) lots of fizzy bubbles (c) nothing at all (d) it glows in the dark
12. 12.True or false: an empty bottle is needed for the fizzy balloon. (a) True (b) False
13. 13.⚖️ 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
14. 14.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
15. 15.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a funnel or spoon (c) sugar (d) vinegar
16. 16.⚖️ 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
17. 17.🧺 Do we need a seed for the fizzy balloon? (a) not needed (b) needed
18. 18.🔍 Which is the odd one out? (a) plain water (b) baking soda water (c) sugar water (d) salt water
19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the amount of vinegar (b) size of the balloon (c) spoons of baking soda (d) the kind of balloon
20. 20.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) lemon juice (d) salt water
22. 22.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a seed (c) a funnel or spoon (d) a battery cell
23. 23.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
24. 24.🎈 Why does the balloon blow up? (a) gas is made inside (b) vinegar is hot (c) the bottle shrinks (d) outside air gets in
25. 25.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
26. 26.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) keep it away from eyes (c) put it in your mouth (d) seal it in a glass jar
27. 27.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they float apart (b) they react (c) they become magnets (d) they freeze
28. 28.🫧 Which of these is neutral? (a) vinegar (b) baking soda water (c) detergent water (d) sugar water
29. 29.🔮 Predict: you use plain water instead of vinegar. What happens? (a) very little fizzing (b) a huge eruption (c) the balloon bursts (d) it turns to honey
30. 30.True or false: vinegar is an acid. (a) False (b) True
31. 31.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we change it (c) we measure it
32. 32.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) no, nothing changes (c) yes, a new gas forms (d) it is only dissolving
33. 33.⚖️ 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
34. 34.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) an empty bottle (c) a magnet (d) vinegar
35. 35.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) vinegar (c) sugar (d) a tray for spills
36. 36.⚖️ 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
37. 37.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
38. 38.🛟 What should you do if vinegar splashes in your eye? (a) rub it hard (b) rinse with clean water (c) add baking soda (d) ignore it
39. 39.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
40. 40.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral

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