Evolution occurs though change over time, but can it go any faster? Scholars speed up the process of evolution and observe a simulation of 20 blue organisms fighting for survival. A graph displays the changes in phenotype over time. By...

Rising sea levels, strong storms, melting ice ... who or what is to blame? Scholars browse the website in preparation for a class discussion or debate about whether human activity is causing climate change. They gain a balanced...

Humans have only inhabited Earth for a short part of its existence. An online resource explains how scientists use clues from rocks and fossils to piece together information about Earth prior to humans. The online instruction includes...

A colorful resource introduces learners to the four major fields of anthropology: cultural anthropology, linguistic anthropology, biological anthropology, and archaeology. Explanations are provided for what each field studies, the kinds...

The Supreme Court gets all the glory, but very few federal cases make it to the highest court. An interesting lesson explores the structure of the lower levels of the federal court system. In addition to outlining the organization of...

Are you going on a trip? ¿Cómo estás viajando? Whether Spanish learners are taking el avión, el autobus, or el tren, they'll know how to describe and pronounce their modes of transportation with an interactive Spanish resource.

The signs of global climate change are becoming more and more evident. The EPA provides an excellent guide for students that acquaints them with the basic causes, effects on people and the environment, and solutions that they can engage...

An inquiry-based science unit for middle school students centered on how human activities affect environmental changes related to land use. The lessons integrate technology and lab activities while teaching about today's land use and how...

The American Geological Institute has done an excellent job of defining and explaining evolution in this online booklet. Darwin, fossils, natural selection, and change over time are some of the concepts that are covered. Make sure to see...

An interactive timeline describing in both pictures and words the rhinoceroses from 50 million years ago to today. Learn how loss of habitat, poaching, and captivity has changed the rhino population over time.

All animals develop and grow over time. The animals in this document undergo one of the most dramatic developmental processes known, metamorphosis. See if you can place the developmental stages in their proper order.

For teenagers, seeing parents separate is never an easy. It is difficult to understand why it happens or how to cope with the changes. This site provides a guide that is designed to help teens through this difficult period. Additional...

This resource shows the study of graffiti-covered walls as they change over time. Made of photo's taken by various photographers over a span of several years. Initial images can be slow loading, but worth the wait.

Learn about the birds of Sydney Australia. See how the number of species have changed over time and learn what those changes can tell us about Sydney's past, present and future bird populations.

The Plains Indians had a dynamic society that changed over time. See how the introduction of the horse changed their way of life. Read about their religion, societal structure, housing, and tools. Included are pictures, maps, critical...

An introduction to the history and culture of Italian immigrants and their descendants in California from 1687 to the present. Shows how the people, industries, and neighborhoods of an area change over time. Includes a virtual exhibit...

This resource describes the Committee on Rules as an arm of the leadership of both parties, the committee is at the center of both political and legislative battles. The role of this committee has changed over time.

Primary source documents and learning excercises for student exploring the American Revolution. Lesson on how events of the American Revolution were interpreted in the 18th and 19th centuries and how the meaning has changed over time.

Exhibit about family life in Illinois from 1700 to the present lets visitors experience the kinds of changes that an environment can undergo over several hundred years. Uses historical narratives, images of objects, timelines, maps, and...

How can you trace the history of a community? What are the historical clues and tips you can use to find out what shaped its past? This site explains the techniques historians can use and provides great examples.

This website, developed by the National Museum of American History, provides standards-based online resources for teaching and learning American history. An array of teacher lessons, activities, interactive media, and artifacts tag this...

Read some historians' views about the Founding Fathers and their interests, perhaps economic, in writing the Constitution. Historians' views have changed over time, and in the suggested student exercises, students are asked to assess...

In this exhibit, the Algonquins of Pikwakanagan in Ontario describe how they have adapted to change over time but still are able to keep their culture and traditions alive. The exhibit included many photos of their brilliant clothing,...

The Hosking General Store in the community of Oyster Pond, Nova Scotia is profiled. Archival records and documents reveal all aspects of the store's growth and change over time.