This article highlights children's literature about day and night, seasons, the aurora, and cause and effect for use in the elementary classroom.

This issue of the free online magazine, Beyond Penguins and Polar Bears, explores the plants that live in the polar regions as well as resources for teaching plant classification, life cycles, and adaptations.

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 features children's literature about plants and the plants found in the polar regions.

In this activity students learn about the life cycles of many aquatic insects and then on a fieldtrip collect and analyze samples of pond life.

This activity is designed to help students learn common names of pond life in Minnesota. To be most effective students should make a visit to the pond before participating in this activity.

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.

In this lesson designed to enhance literacy skills, students learn about the positive effects that exercise has on the body and some activities they can do to improve their health.

This video segment explores the role of touch in the development of young animals, including humans. Footage from NOVA: "Mystery of the Senses: Touch."

In this video adapted from Texas Parks and Wildlife Department, learn about the prairie dog, the importance of its role in its ecosystem, and how it is affected by an ever-growing human population.

This article provides information about creating a plant or flower press and how this tool can enrich the elementary science curriculum.

In this video segment from NatureScene, observe dragonflies and mayflies near Cedar Creek at Congaree Swamp National Park.

Building on their understanding of graphs, students are introduced to random processes on networks. They walk through an illustrative example to see how a random process can be used to represent the spread of an infectious disease, such as the flu, on a social network of students. This demonstrates how scientists and engineers use mathematics to model and simulate random processes on complex networks. Topics covered include random processes and modeling disease spread, specifically the SIR (susceptible, infectious, resistant) model.

In this video segment adapted from A Science Odyssey, follow two scientists and their Nobel Prize-winning efforts to cure bacterial infections using penicillin.

In this media-rich, self-paced lesson, students explore some of the technologies designed to detect and treat inherited diseases and the ethical debate surrounding them.

In this activity students explore the evolution of proteins by comparing 2D and 3D alignments of orthologs and paralogs.

Students explore the applications of quantum dots by researching a journal article and answering framing questions used in a classwide discussion. This "Harkness-method" discussion helps students become critical readers of scientific literature.

Delve into a microscopic world working with models that show how electron waves can tunnel through certain types of barriers. Learn about the novel devices and apparatuses that have been invented using this concept. Discover how tunneling makes it possible for computers to run faster and for scientists to look more deeply into the microscopic world.

This article discusses research findings about classroom questioning and provides tips for teachers and online and print resources.

Students are given a figure from a journal article of a northern blot, and are asked to interpret the results, demonstrating an understanding of both the northern blot technique and RNA processing in eukaryotic cells.