Use this study guide to understand the history of Paleozoic Life.

Understand the formation of the Earth using this study guide.

Students learn about the history of Earth imaging, the Landsat satellite program. They develop interpretation skills as they play a game that involves inferring the subjects of various Landsat images.

Learn about the Earth's evolutionary history during the Cambrian period. [3:25]

Although the space race was originally a competition between two Cold War foes,it ultimately resulted in many benefits for the people of the Earth. Find information on the Mercury, Gemini, and Apollo, and Soviet space programs,...

Students can carry out an investigation using sugar and water to determine whether heating or cooling a substance may cause changes that can be observed. This activity reinforces the ideas that the properties of materials can change when...

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

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on what we can learn about the early earth from fossils. Review questions are included at the bottom of the study guide.

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on climate change. Review questions are included at the bottom of the study guide.

The poles of the earth are often grouped together, however, they are very different. This article is a companion to the exhibit at the Smithsonian. You will learn about adaptations that organisms must make and ways that we affect the...

Understand the history of the Earth through geologic time.

This interactive timeline reveals key geologic and biological events starting back 4.8 billion years to the present.

A learning module where students tour the fossil record to learn what fossils are, how organisms become fossils, the factors that promote fossilization, how paleontologists find fossils, and why some organisms cannot be fossilized....

Interactive site provides information on each layer of the earth. Click on a layer to discover more about it.

Find out what the fossil record tells scientists about the geologic and biological history of the Earth.

[Free Registration/Login may be required to access all resource tools.] Provides a brief overview of plate tectonic activity during the Paleozoic and Mesozoic eras and the changes in sea level that occurred. Includes some questions to...

Suppose you placed a camera at a fixed position, took a picture of the sky at the same time every day for an entire year, and overlaid all of the photos on top of each other. What would the sun look like in that combined image? A...

This article outlines the ancient Egyptian myth in which Geb, the Earth god, and Nut, the sky goddess, marry without the approval of the powerful Sun god, Re.

An easy-to-read description and history of Ptolemy's geocentric model of the universe. Geocentric means that Ptolemy believed the Earth was the center of the universe.

A lesson plan that gives an overview of solar and lunar calendars, their history and lore. Also, of the day and the month, and their relations to the rotational period of the Earth and the orbital period of the Moon.For versions in...

Explore some of the world's most spectacular structures with ABCya's game: Wonders around the World - Spot the Differences! This game presents history and illustrations of man-made architectural phenomena, from Machu Picchu to the Great...

Learn about the works of Charles Lyell, a geologist who studied Earth's history.

This lesson will help students to understand the formation, power, and history of hurricanes. Students will do this using a combination of technological skills. Examples of technology used include: PowerPoint, Word, Netscape Composer,...

For this activity students will use a mathematical model to study the process of radioactive decay in order to help understand how it can be used to determine the age of ancient earth materials.