Fogs Clouds Produced Science Project Idea

How Fogs and Clouds are Produced

(1) Explain the formation of the thin layer of mist which is sometimes seen spread over a swamp or valley bottom. Why does it disappear as soon as the sun begins to shine?

(2) Fogs are common on the Banks of Newfoundland and the coast of Maine whenever the wind is from the south. Farther south, as far as Cape Hatteras, fogs are apt to occur when the wind is from the east. Why? (Review your geography as to the relative locations of the Gulf Stream and the Labrador Current.)

(3) Suggest an explanation of the great fogs which are so common in the British Isles. (Note that bodies of land cool more rapidly than large bodies of water.) At what time of the year do you think fogs would be most common in England? In all cases the presence in the air of small particles of dust encourages the formation of fog. Why? This, no doubt, has considerable effect in intensifying fogs over cities such as London. Clouds are made up of a collection of small particles of water, floating some distance above the earth. Suggest how the great masses of clouds with horizontal bases, seen on a summer day, have been formed. Refer back to your study of weather and explain why clouds are present in a low pressure area and not present in a high pressure area.