Greenbelt Park is a retreat from the pressures of city life and a refuge for native plants and animals just twelve miles from Washington, D.C. Long before colonial settlers appeared here, trees and flowers covered these rolling hills and wildlife roamed the woodlands. Algonquin Indians hunted this land in competition with other smaller tribes. A balance existed between the land and its plants, animals, and native people. Then the colonists arrived. Trees fell and forests gave way to farmland. Wildlife retreated to the frontier. For the next 150 years, people cleared the land, plowed the fields, and planted tobacco, corn, and other crops. The rich fertile soil returned high yields. The people did not give back to the land as much as they took. The land wore out, producing less each season and farming ceased. The land was left bare and defenseless. Erosion caused many scars before nature could slow the process with new growth. Since the early 1900's the land has been recovering.. Today the mixed pine and decidious forest testifies to the land's ability to recover.

The Baltimore Zoo is a wild and wonderful 161-acre park that educates and entertains more than 600,000 visitors each year. It offers experiences that cannot be found anywhere else, rare encounters with lions, tigers, elephants, and more than 2,000 other amazing creatures. Where else can you meet a chimpanzee face-to-face, watch a polar bear do the back stroke, or roar like a lion-and hear him roar back!

The Salisbury Zoo is a 13-acre, professionally accredited facility that provides naturalistic exhibits featuring almost 400 animals native to the Americas.

Storm tossed seas, as well as gentle breezes shape Assateague Island. This barrier island is a tale of constant movement and change. Bands of wild horses freely roam amongst plants and native animals that have adapted to a life of sand, salt and wind. Special thickened leaves and odd shapes reveal the plant world’s successful struggle here. Ghost crabs buried in the cool beach sand and tree swallows plucking bayberries on their southward migration offer glimpses of the animal world’s connection to Assateague.

The Appalachian National Scenic Trail is a 2,180-mile footpath along the ridgecrests and across the major valleys of the Appalachian Mountains from Katahdin in Maine to Springer Mountain in northern Georgia. It traverses the scenic, wooded, pastoral, wild, and culturally resonant lands of the Appalachian Mountains. Conceived in 1921, it was built by private citizens and completed in 1937. The trail traverses Maine, New Hampshire, Vermont, Massachusetts, Connecticut, New York, New Jersey, Pennsylvania, Maryland, West Virginia, Virginia, Tennessee, North Carolina and Georgia.

The National Aquarium measures 115,000 square feet and holds more than one million gallons of water. It uses sophisticated theme exhibits, state-of-the-art technology, and exciting architecture to re-create underwater environments for its visitors. More than 10,500 specimens and 560 species are in the collection. These include animals currently on exhibit and those that have already arrived in preparation for the opening of the Australian exhibit in 2005.

Family style learning is a great way to tackle lots of different subjects, including science.

Join over 74,000 fifth grade classrooms and home schools across America in the Arbor Day National Poster Contest. The theme chosen will increase your students’ knowledge of how trees produce and conserve energy. The free Activity Guide includes activities to use with fifth grade students to teach the importance of trees in producing and conserving energy. These activities correlate with National Science and Social Study Standards. The Guide also includes all of the information you need for poster contest participation.

Based on Charlotte Mason's method of education, this website offers ideas and resources for incorporation nature study into your homeschool.

ExploraVision is a competition for all students in grades K-12 attending a school in the U.S., Canada, U.S. Territory or a Department of Defense school. Homeschooled students are eligible to enter. It is designed to encourage students to combine their imagination with their knowledge of science and technology to explore visions of the future. Teams of students select a technology, research how it works and why it was invented, and then project how that technology may change in the future. They must then identify what breakthroughs are required for their vision to become a reality and describe the positive and negative consequences of their technology on society. Winning ideas have focused on things as simple as ballpoint pens and as complex as satellite communications. The student teams write a paper and draw a series of Web page graphics to describe their idea. Regional winners make a Web site and a prototype of their future vision.