In this lesson: Students build on these ideas by creating a physical model of the water cycle. Students use water, ice, and plastic wrap to model the ocean and cold upper atmosphere. Students use ...

The water cycle is the continuous journey of water from oceans and lakes, to clouds, to rain, to streams, to rivers and back into the ocean again. When the sun shines, it causes water to warm up ...

For the first time in human history, the delicate balance of the Earth’s water system has been thrown off kilter. The Global ...

Carbon, a building block of life, is constantly moving through different environmental compartments such as biota, the atmosphere, the ocean, soil and sediment, as part of what is called ‘the global ...

chemistry and biology provide students with the tools to examine the range of large-scale physical and dynamic phenomena that control the ocean carbon cycle and its interaction with the atmosphere.

Important state variables measured for parcels of water in the ocean are therefore temperature ... by a theoretical construct called a Carnot cycle engine, operating between these two temperatures.

Freshwater is renewable. Its supply is replenished naturally through the water cycle. But Earth’s growing human population is using water so fast that nature can’t keep up with the demand.