Monday, January 24, 2011

Ocean

What i learned is that the ocean is More than half of this area is over 3,000 metres (9,800 ft) deep. Average oceanic salinity is around 35 parts per thousand (ppt) (3.5%), and nearly all seawater has a salinity in the range of 30 to 38 ppt. Scientists estimate that 230,000 marine life forms of all types are currently known, but the total could be up to 10 times that number.

Thursday, January 20, 2011

The Water Cycle

The water cycle, also known as the hydrologic cycle or H2O cycle, describes the continuous movement of water on, above and below the surface of the Earth. Water can change states among liquid, vapour, and ice at various places in the water cycle. Although the balance of water on Earth remains fairly constant over time, individual water molecules can come and go. The water moves from one reservoir to another, such as from river to ocean, or from the ocean to the atmosphere, by the physical processes of evaporation, condensation, precipitation, infiltration, runoff, and subsurface flow. In so doing, the water goes through different phases: liquid, solid, and gas.

Summary:Precipitation, evaporation, and transpiration are all terms that sound familiar, yet may not mean much to you. They are all part of the water cycle, a complex process that not only gives us water to drink, fish to eat, but also weather patterns that help grow our crops.

Thursday, January 13, 2011

Comets

Summary:Well what i learned is that comets are made out of both water and gases.Also comets are aslo called dirty snowballs.Comets come from the oort cloud and kiper belt comets have a coma and a nucleus.

The Early Solar System

Wednesday, January 12, 2011

Early solar system?

Comets are sometimes called dirty snowballs or "icy mudballs". They are a mixture of ices (both water and frozen gases) and dust that for some reason didn't get incorporated into planets when the solar system was formed. This makes them very interesting as samples of the early history of the solar system.

Summary:Well what i learned is that comets are made out of both water and gases.Also comets are aslo called dirty snowballs.Comets come from the oort cloud and kiper belt comets have a coma and a nucleus.