Explore life on ancient Earth with this site! Students can walk with dinosaurs to see what Earth looked like or investigate Earth's history. The site includes articles, pictures, timelines, and lots more.

Learn about the diversity of species on Earth by exploring a cladogram, a graph-like tree of life that illustrates relatedness among species. Includes instructions for reading cladograms and a pie chart that summarizes the percentages of...

Journey into the past while reading this comprehensive overview of the Archaean Eon that covers topics such as early continents and oceans, first life on Earth, Earth's atmosphere, fossil evidence, and plate tectonics.

Young scholars analyze and interpret data for patterns in the fossil record that document the existence, diversity, extinction, and change of life forms throughout the history of life on earth under the assumption that natural laws...

Middle schoolers will learn about ancient organisms as they create a timeline showing when they appeared on Earth.

Learn about the first form of life on Earth, the cell.

From the birth of a planet to the evolution of the human race, interactive details the 25 biggest milestones that shaped Earth's history

[Free Registration/Login may be required to access all resource tools.] There is good evidence that life has probably existed on Earth for most of Earth's history. Fossils of blue-green algae found in Australia are the oldest fossils of...

The story of the universe is told in this engaging site by the European Space Agency. The history of European space science is timelined with dates ranging from 1066 to present day. The birth of galaxies, the big bang, and the beginnings...

A collection of links to activities and lessons that could be used for Earth science concepts including the foil record, creating a timeline of Earth's history, plate tectonics, dinosaurs, and the progression of life on Earth.

The focus of this guide is on exploring the massive ancient creatures that roamed the Earth millions of years ago.

Through full-color images and concise information, learn about the origin of cells. Discover some of the notable studies surrounding the history of life on Earth.

Visit the virtual exhibits at this site to learn more about paleontology, the history of the earth, and life on earth. Use the information on this site to understand geology, geologic time, evolution, and phylogeny.

Museum site note on the history of evolutionary thought and includes scientists and thinkers who have contributed to our understanding of life on Earth. Links are provided for da Vinci, Linneaues, Erasmus Darwin, and others.

This comprehensive article provides information about the physical properties of water, the importance of water as an Earth material, the processes and cycles that water undergoes on Earth, its importance to life on Earth, and why we...

University of California site showcases how different types of organisms exist on the Earth and the history of life.

Students examine paleontology, the study of ancient life on Earth. Some topics explored are vertebrates, invertebrates, and plants.

This comprehensive study guide covers the main terms and concepts needed for a unit on the origin of life.

Two astrophysicists present images of stellar phenomena in this resource and explain why stars are so important to the existence of life on Earth.

Explore life's evolutionary history on the planet through molecular illustrations and animations. Pictorial evidence is based on origin of life research and theory.

[Free Registration/Login may be required to access all resource tools.] Researchers studying the history of life on Earth spend hours digging, examining, pouring over fossils. What can fossils reveal about the past? Find out what fossils...

The aim of this article is to relate the history of oxygen in the atmosphere to the evolution of photosynthesis, aerobic respiration, mitochondria, and life on earth.

This article explains that as our knowledge of life on the planet evolves, we've come to use the word biosphere as a way of explaining the entire intertwined network of life on Earth. This concept combines an understanding of geology,...

Christian Samper details The Millennium Ecosystem Assessment, a report highlighting the detrimental impact of human life on the ecosystems of Earth over the past fifty years. Ecosystems have been deteriorating from a variety of waste and...