In this video segment adapted from NOVA, explore the theory that small bits of gas and dust combined to form protoplanets billions of years ago, which in turn collided to create the four rocky planets of the inner solar system.

Learn how the Hawaiian Islands were formed by a geothermal hotspot and resulting volcanic activity in this video segment from Nature.

This video segment adapted from the Space Telescope Science Institute shows what the Hubble telescope found when it stared at a single, nearly empty spot in the sky for 10 days in 1995. The unexpected result was a picture of a multitude of galaxies stretching into the distance.

This article examines the sixth of seven essential principles of the climate sciences--"We Change Earth's Climate." Written for the science teacher, the article covers greenhouse gases, land-use changes, and other human-induced causes of global climate change. Each issue of the free online magazine Beyond Weather and the Water Cycle is structured around one of the seven principles. The content provides background information, lessons, and activities for K-5 classrooms.

In this video segment adapted from the National Film Board of Canada, learn how the Inuit people have used their traditional knowledge to understand and adapt to changes in their Arctic environment, particularly when hunting and navigating the landscape.

The students will learn about recent meteor strikes and the effects they can have. They will then examine their significance in the history of the planet, and what they do to the surface of a planet when forming a crater. The students will then experimentally determine how the size and impact velocity of a meteorite determine the size of the crater.

Learn where diamonds originate and how inclusions trapped within diamonds help geologists determine their age in this video segment from Nature.

This video segment adapted from NOVA illustrates why carbon is at the center of life on Earth. It also asks whether carbon-based life might exist on other planets.

In this video segment adapted from NOVA, a scientist explains the unexpected heat source fueling widespread volcanic activity on Io, a moon of Jupiter that many had previously assumed to be frozen.

This article sets an historic context for Jules Verne's novel Captain Hatteras (1866), and presents an overview of day-to-day survival on the typical 19th century arctic voyage portrayed in this fictional account.

In this video from Science City, Kerri-Ann Richard, an environmental engineer, describes how she became interested in the field and why it is important to clean up the environment by removing contaminants from soil and ground water.

In this Nature video, follow geologists as they retrieve samples from a fresh batch of Kilauea's molten lava.

In this video profile produced for Teachers' Domain, meet La'ona DeWilde, an environmental biologist who integrates her Athabascan heritage and her Western scientific training to help remote Alaskan villages address environmental issues.

In this video segment adapted from NOVA, scientist Mike Garcia draws lava samples at the foot of the active Kilauea volcano to see if it is related to its neighboring volcano, Mauna Loa.

In a column devoted to interactive resoures for the K-5 classroom, this article features Recycle City, an EPA-produced, student-friendly web site designed to teach students about actions that create a sustainable community. Students will learn about recycling, reducing waste, and using less energy. The column regularly appears in the free, online magazine Beyond Weather and the Water Cycle, which focuses on the essential principles of climate literacy.

This article highlights lessons that help K-grade 5 students understand that animals and plants can only survive in certain environments.The lessons support the theme of an issue of the free online magazine Beyond Weather and the Water Cycle. The theme is "We Depend on Earth's Climate."

Three types of climate proxies -- tree rings, fossils, and ice cores -- are the subjects of lessons that will help K-5 students understand that Earth's climate has been different in the past and that scientists can reveal its history. This article is from the science lessons column of the free, online magazine Beyond Weather and the Water Cycle. The magazine is structured around the seven essential principles of climate literacy and identifies age-appropriate resources for young learners.

Concepts underlying the first of the Essential Principles of the Climate Sciences are aligned with topics typically taught in the elementary grades. This article identifies lessons that will help elementary students develop an understanding of how Sun's light warms Earth and how variations in daylight hours are associated with seasonal change. This article appears in the free, online magazine Beyond Weather and the Water Cycle.

This is a hands-on activity to learn that energy can be transformed into various forms. Potential energy is converted into kinetic energy. Moreover, this kinetic energy can be used (if more than the relative binding energy) to break atoms, particles and molecules to see “inside” and to study their constituents.