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.

Students review the study of living things and make connections back to Earth's systems. This unit focuses on how various species, grouped in populations and communities, work with the nonliving things around them to ensure survival.

Guide your students through a learning module about living organisms in a lake environment.

Learn why people live in places with lots of people.

This lesson will present the levels of organization of living things. It is 5 of 6 in the series titled "Levels of Organization."

This lesson will present the levels of organization of living things. It is 6 of 6 in the series titled "Levels of Organization."

The abundance and distribution of organisms in an ecosystem is determined by biotic and abiotic factors. Animals and plants have adaptations to allow them to compete for resources.

Gone Fishin allows participants to become the captain of a fishing boat, competing for fishery resources. Students discover that if they don't set fishing limits and monitor the fish population, soon there are no fish left in the ocean.

[Free Registration/Login Required] An informational text about the increasing population of the endangered gray wolf. A question sheet is available to help students build skills in reading comprehension.

Selected (8) reading passages (grades 6-10) to pair with "World Without Fish" by Mark Kurlansky. Mark Kurlansky discusses how humans treat the oceans and the fish that live in them, and what the world will likely look like if fish...

This lesson will describe how human activity can impact a natural ecosystem. It is 2 of 4 in the series titled "Human Activity."

Experiment with variations in grass to see which size grows best with different amounts of water. Understand that grass that can live in different levels and change to its environment has a better chance of surviving. Also, experiment...

This lesson will describe how human activity can impact a natural ecosystem. It is 3 of 4 in the series titled "Human Activity."

This lesson will describe how human activity can impact a natural ecosystem. It is 4 of 4 in the series titled "Human Activity."

Although this site talks about regions in Virginia, it offers excellent information on regions in general, for example, ways regions might be classified; by population density, geology, watershed, ecosystem, economy, transportation,...

In this ecosystem consisting of hawks, snakes, rabbits and grass, the population of each species can be studied as part of a food chain. Disease can be introduced for any species, and the number of animals can be increased or decreased...

After learning about the role of oysters in an estuary ecosystem and a population decline that oysters have faced over time from overharvesting and pollution, learners work with data to determine where are ideal sites for restoring...

After learning about the role of oysters in an estuary ecosystem and a population decline that oysters have faced over time from overharvesting and pollution, young scholars work with data to determine where are ideal sites for restoring...

Our planet was once populated by megafauna, big top-of-the-food-chain predators that played their part in balancing our ecosystems. When those megafauna disappear, the result is a "trophic cascade," where every part of the ecosystem...

The Ecological Footprint is rooted in the fact that all renewable resources come from the earth. It accounts for the flows of energy and matter to and from any defined economy and converts these into the corresponding land/water area...

Situated in the north-western Congo Basin, where Cameroon, Central African Republic and Congo meet, the site encompasses three contiguous national parks totalling around 750,000 ha. Much of the site is unaffected by human activity and...

Situated in the north-west of Sichaun Province, the Huanglong valley is made up of snow-capped peaks and the easternmost of all the Chinese glaciers. In addition to its mountain landscape, diverse forest ecosystems can be found, as well...

Located in the north-west of Washington State, Olympic National Park is renowned for the diversity of its ecosystems. Glacier-clad peaks interspersed with extensive alpine meadows are surrounded by an extensive old growth forest, among...