Earth Day grew out of the environmental movement in the late 1960s in response to a series of environmental disasters that took lives, marred natural beauty and threatened animal species. An estimated 20 million Americans participated in...

Animated review of environmental legislation and events, produced as a commemoration, in 2010, on the forty-year anniversary of the first Earth Day. Includes a timeline of events. [4:40]

Kids learn about Earth Day. History and fun facts about this holiday that celebrates nature.

In this lesson plan from "The Friends of Auntie Litter", (www.auntielitter.org), Earth Day will be explored. This lesson plan is one from the "Take Pride Statewide" series. *This lesson plan is provided by Lana Holmes.

Earth's revolution, rotation, tilt, day and night cycle, and the sun's apparent movement across the earth are explored.

This module explores day and night. Learn about what we see during the day and night and why we see what we see.

Each year, people throw out millions of tons of food that could still be eaten. That is a lot of food! Even when we compost food waste there are still some negative impacts. Resources like water and energy are used to grow and transport...

In this lesson from "The Friends of Auntie Litter", (www.auntielitter.org)in celebration of Earth Day, the meaning of Earth Day will be explored. Learners will also learn the words to a song honoring our planet. This lesson is one from...

In this lesson plan from "The Friends of Auntie Litter", (www.auntielitter.org), Earth Day will be explored. This lesson plan is one from the "Take Pride Statewide" series. *This lesson plan is provided by Julie Danley, Pam Walston, and...

Winter solstice, earliest sunset, latest sunrise. It seems that, in the Northern Hemisphere anyway, these three events should happen on the same day. Read this explanation of the changing of the seasons and learn why the winter solstice...

This activity will allow you to model day and night cycles. A rotating student holding a map (provided) models the earth. A lamp is used to model the sun. Numerous worksheets (pdf) and additional website resources are also provided.

Explains how the rotation and the axial tilt of the Earth are responsible for the phenomenon of day and night. Provides information about the Sun, the solar system, and the Earth, and how the circumference of the Earth was first measured...

A instructional activity for third graders in which they learn about the rotation of the Earth on its axis and how this movement creates day and night. They also examine the orbit of the moon about the Earth and the Earth's orbit around...

Find out what all results from Earth revolving around the sun every 365 days as well as the rotation of the Earth every 24 hours.

Choose from dozens of simple crafts including activities for the holidays, animal crafts and much more.

What objects are in the day sky and the night sky? How do they seem to move? Come and explore with us as we discover the sun, moon, planets and stars! This detailed lesson plan includes pictures and videos of the lesson in action,...

This survey of the planets includes all the basics, size, mass, atmosphere, length of day, and the like. It features interactive activities and learning exercises and compares all of the planets in colorful tables.

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...

An air mass forms when the air over a large region of Earth sits in one place for many days. The air gradually takes on the characteristics of the land or water below it. Where Earth's surface is cold, the air becomes cold. Where Earth's...

Jules Verne, who wrote over 80 books during his lifetime, is best known for his "20,000 Leagues Under the Sea." This article includes several images and related links.