In this earth fact worksheet, students look at a picture of the planet earth and read a list of accompanying facts, along with a brief paragraph.

In this worksheet on the planet Saturn, students look at a picture of the planet and read accompanying facts, along with a brief paragraph.

In this worksheet on the planet Mars, students look at a picture of the planet and read accompanying facts, along with a brief paragraph.

In this worksheet on the planet Venus, students look at a picture of the planet and read accompanying facts, along with a brief paragraph.

Read about the vital statistics, composition, and other facts about our home planet, Earth.

An equation for the law of universal gravitation is stated. The weight equation (W=m*g) is related to the law. An interactive JavaScript form allows the user to practice determining the force of gravity and the acceleration of gravity...

Learn the basic facts about planet Earth, and its unique position as the only known planet where life can survive. The brief, to the point text makes this site most suitable for younger researchers.

Describes Earth's layers, which make up the geosphere.

As part of the General Chemistry Virtual Textbook, this site examines a variety of topics related to the Earth. Topics covered in the discussion include formation of the solar system, the planets, the continents, primary differentiation...

An explanation of the effect that the tides have on the Earth's rotation.

A NASA scientist, Dr. Sten Odenwald, answers many students' questions. Topics include planets, galaxies, black holes, the origin of the universe, and common misconceptions about space.

This introduction to the atmosphere details the important properties of the atmosphere: temperature, pressure, and humidity.

Discussion of liquefaction and landslides which are two of the many effects of earthquakes.

Read about our planet's only satellite, better known as the moon in this colorful, illustrated tutorial.

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 cool fact sheet about Mercury including a place for students to enter their weight on Earth to convert it to what it would be on Mercury.

A cool fact sheet about Uranus including a place for students to enter their weight on Earth to convert it to what it would be on Uranus.

A cool fact sheet about Saturn including a place for students to enter their weight on Earth to convert it to what it would be on Saturn.

A cool fact sheet about Neptune including a place for students to enter their weight on Earth to convert it to what it would be on Neptune.

A cool fact sheet about Jupiter including a place for students to enter their weight on Earth to convert it to what it would be on Jupiter.

A cool fact sheet about Pluto including a place for students to enter their weight on Earth to convert it to what it would be on Pluto.

Resource has text information to compare Neptune with Earth. Includes Neptune observational data, orbital data, magnetosphere, and atmosphere. Also contains an image of Neptune that can be enlarged.

The climate of our planet is greatly affected by Earth's oceans. Learn here about the different oceanic currents and the role those currents play on climate.

A general information table comparing the atmospheres of Venus and Earth. Good evaluations of the cause of the differences between the two planets.