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Most of our oceans still remain a mystery. Dr. Chris Massell Symons shares how scientists are exploring the depths to uncover their secrets. Also: find out about a fun song to "lure" your students into learning about our One Big Ocean.

This publication is all about developing your middle school students' understandings of earths oceans and the major effect they have on climate. Understanding and interpreting local weather data and understanding the relationship between weather and climate are important first steps to understanding larger-scale global climate changes. Activities that ask students to collect and analyze local weather data as well as analyze global data can be found in the Lessons and Activities section. Analyzing and interpreting data is a major focus of this publication. Numerous data sets can be found in the Sources for Real Data section. The Background Information section and the article Tomorrows Forecast will help reinforce your own content knowledge.

More exemplary resources from the Middle School Portal 2: Math & Science Pathways project.

We already know why polar bears don't eat penguins, but what do they eat? In this podcast, we'll share a simple activity that opens a window to understanding a unique ecosystem as one example of a food chain - the Arctic Ocean.

This podcast includes directions for an activity where students build a mobile that represents an Arctic food web.

Mammals 101 - hair, milk, three bones in the inner ear

Dr. Ross MacPhee, curator and researcher at the American Museum of Natural History provides content background on polar mammals past and present, explains basic adaptations of Arctic mammals, and discusses current means of studying mammals in the field. [10:43]