[Free Registration/Login Required] An interactive animation demonstrating the Earth's tilted axis and how that causes the seasons. Also included on the site is a short quiz on the topic.

In this set of activities, the path the Sun takes in relation to the Earth is tracked by students on two days, with three months in between them. They will develop an understanding of what causes the seasons as they examine the effects...

A video and a short multiple-choice quiz on how the Earth's tilt on its axis, its rotation, and its orbit around the Sun give us a 24-hour day, a 365-day year, and our seasons.

Especially for kids, the Weather Dude provides a simple explanation of the seasons. Includes a music clip titled "Circle of Our Four Seasons," and suggested lesson plans and school assignments.

This season simulator takes Earth through an entire year cycle allowing the viewer to observe the tilt of the Earth and the intensity of the sunlight.

Why do some regions experience full-time heat while others are reckoning with frigid temperatures and snow? And why are the seasons reversed in the two hemispheres? Rebecca Kaplan explains how the shape of the Earth's orbit around the...

Provides a comprehensive look at the planet Earth including photos, how Earth got its name, and facts and figures about its size, seasons, moon, atmosphere, rotation, and lithosphere.

The BBC provides a general overview of the planet Earth. Content includes statistical information, a focus on the four seasons, moon information, and more.

[Free Registration/Login Required] How can you treat the earth with more respect? Check out this resource featuring links to elementary activities to celebrate Earth Day. You will find word searches, crossword puzzles, reading...

[Free Registration/Login Required] This site contains an animation showing how the seasons are produced by the tilt of Earth's rotating axis. Site also includes a short quiz over the topic of seasons.

This textbook chapter looks at the role of temperature in sustaining life on Earth and on weather and climate. It discusses the Earth's movements and the seasons, the circulation of the oceans, wind and weather, and the water cycle....

In this interactive tutorial students will learn what causes the seasons, diurnal cycles and how the constellations move through the sky. Learn we are able to see other planets and how astronomical events affected life on the Earth.

Compare the seasons on Earth and Mars with NASA imagery. Use this resource to visualize how the axial tilt of a planet influences its seasons and to compare data about seasonal changes on Earth and Mars. Support materials include:...

Explore what causes seasons on Earth in this interactive adapted from NASA materials that features four cities at different latitudes. Use this resource to view how Earth's axial tilt causes seasons from different perspectives and to...

An explanation about the rotation of the Earth and why the Earth has seasons.

A slideshow and a short multiple-choice quiz on the topic of seasons and how they are caused by the Earth's rotation and orbit.

[Free Registration/Login may be required to access all resource tools.] Describes how and why seasons occur.

[Free Registration/Login may be required to access all resource tools.] Learn how and why seasons occur.

Find out what the seasons are and how they change. Through the use of excellent graphics, content explores the Earth's orbit around the sun and how sunlight reaches the earth at equinox and the winter solstice.

Encyclopedia entry for the seasons. Click on each specific season for more information.

Facts about the Earth including its orbit, its atmosphere, and its landforms. Includes a discussion question on seasons, with facts about them, and the answer. A linked page covers similar material in a "Level 2" version, and has a...

A student-directed tutorial showing all aspects of seasons, including Earth's tilt position in relation to the sun, photos of typical weather during that season, and some informational text to support the visuals.

In this lesson, students will discuss, define, and demonstrate the Earth's rotation and revolution around the sun in a counterclockwise position. They will be able to predict seasons based on the amount of light that hits the Earth.

[Free Registration/Login Required] View how the axis of rotation causes Earth to have seasons on this site. Also test your knowledge on how the position of Earth and seasons relate with a short quiz.