Thursday, May 29, 2008

Clouds (blog 2)

Did you ever wonder how clouds are formed? Well, a cloud is formed when moisture in the air condenses on small particles of dust or other solids in the air. The liquid droplets that form make up a cloud. When you look up at the sky sometimes, you may find the clouds to be different shapes and sizes. Clouds are classified by their basic shape and altitude. The three main types of clouds are cumulus clouds, cirrus clouds, and stratus clouds. Cumulus clouds are clouds that look like piles of cotton balls in the sky. They are white and fluffy and have a flat bottom. Cirrus clouds are clouds that look feathery or fibrous. Usually cirrus clouds form at very high altitudes. Last but not least, stratus clouds are smooth, gray clouds that cover the whole sky and block the sun out. Each cloud is different and is associated with a certain type of weather. The topic about clouds was very interesting and fun to learn about. My opinion is that it was a great topic to learn about while studying weather.

Wind (blog 1)

What is wind? Wind is air in motion. The two general types of winds are global winds and local winds. The type that you are most familiar with is probably local winds. Local winds are winds that blow from every direction and cover short distances. Global winds are winds that blow from a certain direction and cover long distances. Both winds are caused due to differences in air pressure because of the unequal heating of the atmosphere. During the day, air is warmer and heats the land up faster than the water. As warm air over the land rises, cooler air over the sea moves in to take its place. The flow of air from the sea to the land is called a sea breeze. A land breeze is when the exact opposite happens. During the night, air over the land is now cooler than the air over the sea. As warm air from the sea rises, the cooler air from the land moves to take its place. This is called a land breeze. Next comes the global winds. The global winds do not move directly from north to south or south to north. Since the Earth rotates, winds in the northern hemisphere curve to the right and winds from the southern hemisphere curve to the left. This apparent shift in wind direction is called the Coriolis effect. Winds may not seem so important, though, winds are the fastest way we use to generate electricity. This topic is very interesting to learn about. I loved it and I am sure others will to. Learning about something you thought wasn't too important becomes interesting because you see the topic differently. My opinion is that this was a very fun topic to learn about.