[Free Registration/Login may be required to access all resource tools.] In this online tutorial students will explain the law of conservation of mass, the law of definite proportions, and the law of multiple proportions. They will also...

Discover the scientific data that supports the significance of the Cambrian explosion.

Charles Darwin's theory that all living organisms are connected in some way has been confirmed through intense studies over centuries. Understand the similarities that bond all things living to the same family tree by checking out this...

Online exhibit that represents the evolution of the woodcut as illustration during the late Medieval and early Renaissance period. This exhibition explores the development in technique, composition, perspective, and coloration of the...

Using the song "My Favorite Things" from the musical, The Sound of Music, as inspiration, learners will create their own song or poem (to the same tune) that lists their favorite things. Each verse will focus on their favorite things...

As urban populations increased along with poverty in urban areas, charities began to offer help. Read about the Charity Organization Society that attempted to coordinate charitiable giving. Read about the evolution of the coordination of...

[Free Registration/Login may be required to access all resource tools.] Describes how events during the Paleozoic Era impacted evolution.

Armand D'Angour explains the evolution of the Olympics. [3:20]

This lecture covers the topic of life now and into the future, including the role genetic engineering will play.

Background information and slideshow presentation on creating the Origin of Species scientific manuscripts.

This site contains many links to ongoing exhibits, helpful natural history information, and other fun and educational links, including a "Just for Kids" link. Great place for the natural history bunk!

Learn more about the theory that dogs evolved from wolves in this video from Nature. [5:03]

[Free Registration/Login may be required to access all resource tools.] Covers the Cenozoic Era, the age of mammals.

Describes Homo habilis and Homo erectus, two early ancestors of humans. Discusses how they were discovered, their characteristics, and what we know about them, with the information clearly laid out in a chart along with some comparative...

Article provides a good overview of the exciting find of a three-year-old girl skeleton dating from 3.3 million years ago as well as the significant scientific contributions of this find.

The expansion and explosion of a star is described at it goes through its nova phase. Current theories are discussed.

What are some of the cheetah's distinctive characteristics? Come and check out this resource featuring fun facts and information about the cheetah.

Did you know that the elephant is the largest animal in the world? Discover more about where they live, what they eat and how they socialize when you visit this site.

What bear is considered China's national treasure? This site features a brief description of the life of a panda bear.

Picture of the fossil Leanchoilia superlata from the Phylum Arthropoda recovered from Burgess Shale.

Fossils found in Argentina have led scientists to change the way they think about the evolution of dinosaurs. A relative of the velociraptor has been found that demonstrated bird-like features. Learn more about these fossils here. [Date...

Describes the evolution of Thomas Newcomen's steam engine development. Provides several photographs and sketches of Newcomen's machines.

Scientists say that flatworms are the oldest living ancestors of those of us that have right and left sides - that means you!

This lesson will introduce the 7 characteristics of all living things. It is 2 of 4 in the series titled "7 Characteristics of Life."