Baking Soda and Vinegar Experiment Worksheet

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

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