[Free Registration/Login Required] An informational text about penguins. A question sheet is available to help students build skills in reading comprehension.

"The quest for a reliable method to find your way at sea was one of the thorniest problems of the 1700s." Find out about the search for longitude at this NOVA site. Includes interactive Shockwave game, learning activities and more.

[Free Registration/Login may be required to access all resource tools.] Find a sphere's volume and surface area.

As part of a virtual museum exhibit, this site explores the taiga biome. Here you can learn what a taiga biome is, where you can find it, and the types of plants and animals that live there.

Use these internet sites and complete the activities for each one to learn more about the third largest continent.

Article from Benbest entitled "Chapter 6 -- Basic Cerebral Cortex Function Other than Vision."

Eleven documents and two maps detailing the almost two hundred year struggle between England and Spain for hegemony in the Caribbean.

This star map has five different constellations along with four newly discovered solar systems. If you are located in the northern hemisphere you can use this resource to locate stars.

About 328 species of hummingbirds flit and flutter in the Western Hemisphere. Just 14 species regularly nest and raise young in the United States. The six species included on this site all include the United States in their breeding...

This lesson will present how to apply the volume formulas of prisms, cylinders, pyramids, cones, spheres, and hemispheres to find the volume of composite figures. It is 5 of 6 in the series titled "Volume of Composite Figures."

Learn about the four seasons, when they occur in the northern and southern hemispheres, and why the seasons change as the Earth rotates around the Sun.

[Free Registration/Login Required] This flipchart explains the division of the hemispheres, northern and southern, and eastern and western. The Equator and Prime Meridian are defined, as well as latitude and longitude. Students are given...

Wolverines are widely distributed in the northern reaches of both hemispheres. In North America, they occupy remote habitats from the high mountainous interior of the Rockies to Arctic coastal tundra. Learn more about the Gulo gulo, more...

This is a publication on the human brain and how it works. Gives details on the neuron, how the senses interact with the brain and much more. PDF (requires Adobe Reader).

Use this site to find the countries and territories operating daylight savings time and when it starts and ends.

A short description of the Common Carp found in North America and Europe.

Students paint pumpkins to make their own globes in this fun way to learn longitude and latitude.

This Montana State University site provides a simple chart on the spring and fall equinox and a description of the process.

Explore some topographic data at the Globe site. What environmental measurements are taken in the study? How are these measurements presented?

Print out these colorfully illustrated PDF file pages to practice learning your basic three dimensional geometric solids. Fold them in half and one side shows the shape while the other side shows the shape with the correct name. Put them...

See how the Roosevelt Corollary expanded on the Monroe Doctrine and allowed for intervention in Latin American affairs.

Excellent resource for "paper-plate" activities that help simplify various astronomy topics. Learn how to build a "Moon Finder" and "Planet Pointer," and create a paper-plate model that explains the Transit of Venus.

This reference lists formulas for geometric shape measurements and offers links to online calculators.

Features 20 interesting facts about South America.