Winter, spring, summer, and fall—Earth experiences them all! But what about Mars? Scholars compare the planets in terms of distance, tilt, and rotation during a lesson from PBS's Space series. Great visual models of Earth and Mars, plus...

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.

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.

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:...

A slideshow exploring Earth's rotation and revolution around the sun. Learn that because of Earth's axis tilt we experience the seasons!

This lesson will explain what causes seasons on Earth.

In this activity, use seasons to determine your location. Click on the different dates to view the earth's shadow at different times of the year from the sun's position.

Students perform many inquiry activities related to Earth's orbit. Included are recording daily temperatures, observing the sun's path over several weeks, tracking sunrise and sunset times, and angle of sunlight. Diagrams make lessons...

Students perform many inquiry activities related to Earth's orbit. Included are recording daily temperatures, observing the sun's path over several weeks, tracking sunrise and sunset times, and angle of sunlight. Diagrams make lessons...

A map from 1910 of the Indian subcontinent and the Central Asia region showing the typical rainfall distribution patterns during the summer monsoons, keyed to show areas of rainfall ranging from very light to, according to this text, the...

A map from 1910 of the Indian subcontinent and the Central Asia region showing the typical rainfall distribution patterns during the winter monsoons, keyed to show areas of rainfall ranging from very light to heavy rainfall. The map...