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When there is a heavy rainstorm, You sometimes see lightning, which is a bright flash of light in the sky.In the past, people thought lightningCame from an angry god.
Source of image: http://www.moonraker.com.au/techni/lightning-marine.htm
In the 1700’s, Benjamin Franklin found out that lightning was electricity. Storms with lightning are really electrical storms.
Benjamin Franklin 1706-1790Source of image: http://www.earlyamerica.com/lives/franklin/portrait.html
Scientists today still do not know everything about lightning, however. They do not know exactly where it comes from, and they never know where and how it will hit the earth.
What is the topic of this paragraph?
a. Lightning This is correct.b. Weather Too general
c. Benjamin Franklin Too specific
Cirrus clouds are one kind. These are made of ice drops. They look soft and light.
Source of image: http://www.balsamfir.com/MotoJournal/moto/moto-0604.htm
Cumulus clouds are another kind of cloud. They are large and deep and flat on the bottom. We usually see cumulus clouds on warm summer days.
Source of image: http://commons.wikimedia.org/wiki/Image:Cumulus_Clouds_Over_Jamaica.jpg
Finally, there are stratus clouds, which cover the whole sky. These clouds make the sky gray, and the sun does not shine at all.
Source:http://www.uwsp.edu/geo/faculty/ritter/geog101/textbook/atmospheric_moisture/clouds_3.html
What is the topic of this paragraph?
a. Weather too generalb. Kinds of clouds correct
c. Cumulus clouds too specific
Source of image: http://www.victoriaweather.ca/clouds.php?image=fog
Fog is really a cloud near the ground. Both fog and clouds are made of many little drops of water. These drops stay in the air because they are so small.
Source: http://www.wisconsintruckaccidentlawblog.com/tags/bad-weather/
You cannot see each drop, but fog can make it hard to see other things. It can be dangerous if you are driving, for example. Sometimes when there is a lot of fog, you cannot see the road.
Sailors may also have trouble when there is fog. Boats may get lost and hit rocks or beaches in the fog.Source: http://www.chitambo.com/clouds/cloudshtml/fog.html