PBS
Pbs Nature: Penguins
Did you know that penguins can survive for more than 100 days without food or water? Discover more educational facts about these fascinating birds when you explore this site.
PBS
Pbs: Nature: The World of Penguins
What do you know about the world of penguins? This PBS site features information about these flightless birds. Come and check out this extraordinary resource.
Smithsonian Institution
National Museum of Natural History: Snowy Owl
This Smithsonian website has a brief, but thorough, article on the Snowy Owl that also includes a picture and an extensive quote from the 19th Century naturalist Edward Nelson.
Oklahoma Mesonet
Oklahoma Climatological Survey: Air Masses
This Oklahoma Climatological Survey explores how air masses form, as well as the weather formations, which tend to appear on the edges of these masses in what is known as a front.
Other
Physical geography.net: Introduction to the Atmosphere
A very detailed description of air masses, how they move and interact, and what weather takes place when this happens.
Other
Yukon College: Geographic Concepts: Introduction to Circumpolar Geography
This article explains the geography of the circumpolar north, which includes northern Eurasia. Read about the different climates and ecozones in this area. Includes student assignments.
Regents of the University of Michigan
Animal Diversity Web: Emperor Penguin
This site provides a detailed overview of the Emperor Penguin. Content includes a focus on this bird's physical characteristics, geographic range, natural history, economic importance for humans, and more.
Curated OER
Ed Tech Clearinghouse: Koppen Climate Classification of North America, 1911
A map from 1911 of the climate regions of North America using the classification system developed by Wladimir Koppen, based on the concept that native vegetation is the best expression of climate. The major groups are (A)...