Students perform pH and turbidity test to determine water quality. In this environmental science lesson, students analyze NASA database on chlorophyll-a in the bay. They explain how a small river area affects Chesapeake Bay.

Students research various planned communities and consider the pros and cons of such a development. They realize that planned communities have advocates and detractors and use these considerations when planning their own community.

Students examine Native American dolls. They discover the connections between the dolls and the Native American culture and customs. They also use maps to locate the position of different tribes.

Students explore the proposed Affordability in Higher Education Act. They synthesize their knowledge by acting as lobbyists representing different special interest groups with opposing perspectives on the proposed bill.

Students participate in experiments to visualize the differences between chemical and physical changes. They attempt to detect the five characteristics of a chemical change.

Students participate in an experiment to help them explain specular and diffusion reflection.

Young scholars examine forest organisms, features of some of the different types of forest, classify organisms based on the type of forest they come from, and explore how certain species are connected with other, particular species...

Students investigate the creatures of intertidal zones. They explore the adaptations species make to survive .

Students examine their assumptions about forest fires. They explore the conflicts involved with the forest service's new strategy. in addition, they will study one case where a prescribed natural burn had a significant impact on a later,...

Students will examine how floods work and why they can cause so much damage and destruction. They use a stream table to observe the processes that lead to flooding and the effects of floods on human-made structures. Includes a guide to...

Students explore biological evolution and natural selection and its evolutionary consequences. They also explore how organisms are interdependent on one another.

Students, in groups, observe, collect data, and analyze mammal behaviors.

Learners develop a plan for ecotourism after researching a nearby national park or wild area.

Students explore how predators help control the growth of prey species for a more balanced ecosystem.

Students study the impact that invasive species have on biodiversity and more natural areas.

Students study the Temperate Grasslands biome of North America. They explain that it is an endangered ecosystem because the rich soils have been converted to farming in most areas. They view videos imbedded in this plan, then complete...

High schoolers watch videos about various modes of transportation, they examine the energy transformations that occur in each, and they be introduced to the laws of thermodynamics.

Students watch videos about various modes of transportation, they examine the energy transformations that occur in each, and they be introduced to the laws of thermodynamics.

Students examine proposals to combat AIDS, VRSA, and measles and recommend one that they could support. They investigate how people can have very different feelings about such proposals.

Fourth graders participate in activities to examine how simple machines help build things. They identify the six types of simple machines. They discover how simple machines where use historically to build pyramids and how they are still...

Fifth graders, in groups, conduct an experiment in which they measure ground level ozone levels using an ozone measuring kit. They analyze and compare the weather conditions and locations where ozone readings are highest and lowest.

Students read excerpts of autobiographies from Frederick Douglass and Harriet Tubman. After listening to excerpts of an oral reading of Frederick Douglass' book, they discuss the ways African Americans were treated on plantations. ...

Students examine the concept of angular momentum and its correlation to mass, velocity, and radius. They listen to a teacher-led lecture, conduct an experiment with rotational inertia, angular momentum, and rotation speed by making...

Students participate in an activity that introduces them to the concept of binary coding as a language. They decode messages using special boards that has its own code for different letters. They create new codes by rearranging wires...