This article highlights lessons and activities that ask students to plan expeditions to Antarctica. Students use math, science, and geography to plan their routes, clothing, and food.

This online article, from Biodiversity Counts, offers insight into how plants interact with arthropods. It has: an explanation of the difference between detrimental and mutually beneficial relationships; some of the chemical and mechanical modifications plants have made to attract helpful arthropods and fend off harmful ones; a detailed overview of pollination, with descriptions of seven common pollination syndromes; a detailed overview of plant defense mechanisms; and a series of questions students can ask when they see an arthropod on a plant in order to learn more about how the two are interacting.

In this activity, learners work in groups to determine the mass and volume of four samples: glass marbles, steel washers or nuts, pieces of pine wood, and pieces of PVC pipe. Learners then plot the data points on a large class graph of mass vs. volume to discover that data points for a particular material form a straight line, the slope of which gives the density of the material.

This free, online article, developed for elementary teachers, describes a Kindergarten polar science, standards aligned, unit centered on The Polar Express developing literacy, math, and science skills.

This issue of the free online magazine, Beyond Penguins and Polar Bears, provides resources for planning a "polar festival," or an informal learning event. The issue includes planning guides, suggested activities, and resources to integrate literacy into the science-themed event.

This article features activity books and polar-themed children's literature for use in the elementary classroom.

This article assembles free resources from the Polar Mammals issue of the Beyond Penguins and Polar Bears cyberzine into a unit outline based on the 5E learning cycle framework. Outlines are provided for Grades K-2 and 3-5.

This issue of the free online magazine, Beyond Penguins and Polar Bears, explores the characteristics and living systems of the Arctic and Southern Oceans. Instructional resources include ocean-related lessons and informational text about blue whales.

This article assembles free resources from the Polar Oceans issue of the Beyond Penguins and Polar Bears cyberzine into a unit outline based on the 5E learning cycle framework. Outlines are provided for Grades K-2 and 3-5.

This issue of the free online magazine, Beyond Penguins and Polar Bears, highlights ways to teach about the extremes in day and night and seasons in the Arctic and Antarctica. The targeted literacy skill is cause/effect relationships. Art and poetry are integrated through a study of the aurora.

This article assembles free resources from the Polar Patterns: Day, Night, and Seasons issue of the Beyond Penguins and Polar Bears cyberzine into a unit outline based on the 5E learning cycle framework. Outlines are provided for Grades K-2 and 3-5.

This article assembles free resources from the Polar Plants issue of the Beyond Penguins and Polar Bears cyberzine into a unit outline based on the 5E learning cycle framework. Outlines are provided for Grades K-2 and 3-5.

This article provides an overview of the geography, characteristics, and life of the Arctic and Southern Oceans.

Students were asked to compare their estimates of public opinion on several current issues to the actual values obtained through the analysis of National Surveys. The objective was to explore a common social attribution error and to acquire familiarity with data sources and on-line analysis tools.

This video looks at the global population and trends. It also explains the concept of carrying capacity and how a person's behavior influences carrying capacity. This video is part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.

This video describes the ecological footprint and its limitation. It goes into some depth on the computation on the footprint and what it means for the global population. This video is part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.

Many factors influence the success and survival rate of a population of living things. Explore several factors that can determine the survival of a population of sheep in this NetLogo model. Start with a model of unlimited grass available to the sheep and watch what happens to the sheep population! Next try to keep the population under control by removing sheep periodically. Change the birthrate, grass regrowth rate, and the amount of energy rabbits get from the grass to keep a stable population.

This issue contains estimates of the resident population of Australian states and territories as at 30 June of each reference year. Estimates up to 2006 are final, based on the results of the 2006 Census of Population and Housing. Estimates for June 2007 have been revised and estimates from June 2008 onwards are preliminary.

This activity is a field exploration where students observe, record and share their findings of plant and animal life on the prairie.