Pd.3 Group 3
© 2012 Pearson Education, Inc. Water. © 2012 Pearson Education, Inc. Hydrologic Cycle The hydrologic cycle is a model that describes the movement of water.
Spheres of the Earth The earth is made up of four main spheres which allow us to live and function. These layers must exist in harmony and work together.
How The Earth Works. The Solid Earth Earth Systems External Effects (Astronomical) Atmospheric Circulation Oceanic Circulation Hydrologic Cycle Rock.
How The Earth Works. Earth: Basic Facts 150 million km from Sun (93 million miles) Diameter, just under 13,000 km (8,000 mi.) Density: 5.5 g/cc (5500.
Ecology and Human Concerns Chapter 25. Ecology Study of interactions of organisms with one another and with the physical environment.
Evaporation: Process in which liquid water changes into water vapor. During evaporation energy is absorbed by water molecules.
Biogeochemical Cycles. I. Cycling in Nature A.The structure of ecosystems is influenced by the availability of nutrients and energy. B.The elemen ts essential.
