Baking Soda and Vinegar Experiment Worksheet

Science experiments lesson 11: Baking soda and vinegar balloon · Set 730 · 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 the one thing we change? (a) the amount of vinegar (b) spoons of baking soda (c) size of the balloon (d) the same bottle
2. 2.🔮 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
3. 3.True or false: a balloon is not needed for the fizzy balloon. (a) False (b) True
4. 4.🎈 Why does the balloon blow up? (a) gas is made inside (b) outside air gets in (c) vinegar is hot (d) the bottle shrinks
5. 5.True or false: salt water is an acid. (a) True (b) False
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) the same bottle (b) the kind of balloon (c) spoons of baking soda (d) size of the balloon
7. 7.🔍 Which is the odd one out? (a) plain water (b) detergent water (c) sugar water (d) salt water
8. 8.🛟 What should you do if vinegar splashes in your eye? (a) add baking soda (b) rinse with clean water (c) ignore it (d) rub it hard
9. 9.⚖️ 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
10. 10.🔍 Which is the odd one out? (a) baking soda water (b) vinegar (c) tamarind water (d) lemon juice
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) a balloon (b) a tray for spills (c) a seed (d) a funnel or spoon
12. 12.⚖️ 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
13. 13.🔮 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
14. 14.🔮 The fizzing stops after a while. Why? (a) the balloon got cold (b) the gas froze (c) an ingredient ran out (d) the bottle got tired
15. 15.🔍 Which is the odd one out? (a) lemon juice (b) vinegar (c) orange juice (d) soap solution
16. 16.📘 Is the fizzing a sign that a new substance is made? (a) yes, a new gas forms (b) it is only melting (c) no, nothing changes (d) it is only dissolving
17. 17.🫧 Which of these is a base? (a) vinegar (b) plain water (c) sugar water (d) detergent water
18. 18.🫧 Which of these is neutral? (a) lemon juice (b) orange juice (c) curd (d) plain water
19. 19.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they react (c) they become magnets (d) they float apart
20. 20.🔍 Which is the odd one out? (a) salt water (b) plain water (c) vinegar (d) sugar water
21. 21.True or false: lemon juice is a base. (a) False (b) True
22. 22.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is what we measure. (a) True (b) False
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a balloon (c) a comb (d) vinegar
24. 24.True or false: soap solution is neutral. (a) True (b) False
25. 25.⚖️ 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) False (b) True
26. 26.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a battery cell (c) vinegar (d) a tray for spills
27. 27.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a tray for spills (b) a funnel or spoon (c) an empty bottle (d) sugar
28. 28.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) an acid (c) neutral
29. 29.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
30. 30.True or false: baking soda water is a base. (a) True (b) False
31. 31.⚖️ 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
32. 32.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
33. 33.🛟 Which safety rule fits the fizzy balloon experiment? (a) put it in your mouth (b) keep it away from eyes (c) seal it in a glass jar (d) shake it near your face
34. 34.🧺 Do we need a comb for the fizzy balloon? (a) not needed (b) needed
35. 35.⚖️ 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
36. 36.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
37. 37.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) vinegar (c) baking soda (d) a seed
38. 38.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a balloon (b) vinegar (c) an empty bottle (d) a mirror
39. 39.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) a mirror (c) a seed (d) a funnel or spoon
40. 40.🫧 Which of these is neutral? (a) sugar water (b) soap solution (c) curd (d) baking soda water

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