Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 432 · 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.🎈 Why does the balloon blow up? (a) vinegar is hot (b) outside air gets in (c) the bottle shrinks (d) gas is made inside
2. 2.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a mirror (b) a funnel or spoon (c) vinegar (d) a balloon
3. 3.True or false: plain water is a base. (a) False (b) True
4. 4.🫧 Which of these is neutral? (a) soap solution (b) detergent water (c) baking soda water (d) sugar water
5. 5.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a balloon (c) sugar (d) baking soda
6. 6.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they become magnets (b) they freeze (c) they react (d) they float apart
7. 7.True or false: a balloon is not needed for the fizzy balloon. (a) True (b) False
8. 8.🔮 The fizzing stops after a while. Why? (a) an ingredient ran out (b) the bottle got tired (c) the gas froze (d) the balloon got cold
9. 9.🧺 Which of these is not needed for the fizzy balloon? (a) an empty bottle (b) a tray for spills (c) baking soda (d) a battery cell
10. 10.⚖️ 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
11. 11.🧺 Do we need a balloon for the fizzy balloon? (a) needed (b) not needed
12. 12.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) an empty bottle (c) a seed (d) a tray for spills
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a tray for spills (c) baking soda (d) a comb
14. 14.🛟 Which safety rule fits the fizzy balloon experiment? (a) shake it near your face (b) seal it in a glass jar (c) put it in your mouth (d) keep it away from eyes
15. 15.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) not needed (b) needed
16. 16.🫧 What do you see when baking soda meets vinegar? (a) it turns to ice (b) it glows in the dark (c) nothing at all (d) lots of fizzy bubbles
17. 17.⚖️ 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
18. 18.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) neutral (c) a base
19. 19.📘 Is the fizzing a sign that a new substance is made? (a) it is only dissolving (b) yes, a new gas forms (c) it is only melting (d) no, nothing changes
20. 20.True or false: a balloon is needed for the fizzy balloon. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) curd (b) baking soda water (c) soap solution (d) detergent water
22. 22.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) sugar (c) an empty bottle (d) a battery cell
23. 23.True or false: a tray for spills is not needed for the fizzy balloon. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) vinegar (b) soap solution (c) baking soda water (d) detergent water
25. 25.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rub it hard (c) rinse with clean water (d) ignore it
26. 26.⚖️ 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
27. 27.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True
28. 28.🧺 Which of these is not needed for the fizzy balloon? (a) a mirror (b) vinegar (c) a funnel or spoon (d) an empty bottle
29. 29.True or false: lemon juice is a base. (a) True (b) False
30. 30.🫧 Which of these is an acid? (a) soap solution (b) orange juice (c) baking soda water (d) plain water
31. 31.🔮 Predict: you use plain water instead of vinegar. What happens? (a) a huge eruption (b) the balloon bursts (c) it turns to honey (d) very little fizzing
32. 32.⚖️ 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 amount of vinegar (c) the same bottle (d) the kind of balloon
33. 33.⚖️ 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
34. 34.🧺 Do we need a seed for the fizzy balloon? (a) needed (b) not needed
35. 35.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
36. 36.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
37. 37.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
38. 38.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
39. 39.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) carbon dioxide (b) oxygen (c) helium (d) hydrogen
40. 40.⚖️ 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

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