From the sagebrush at its alluvial base to the 13,063-foot summit of Wheeler Peak, Great Basin National Park includes streams, lakes, alpine plants, abundant wildlife, a variety of forest types including groves of ancient bristlecone pines, and numerous limestone caverns, including beautiful Lehman Caves.

Lake Mead National Recreation Area (NRA) offers a wealth of things to do and places to go year-round. Its huge lakes cater to boaters, swimmers, sunbathers, and fishermen while its desert rewards hikers, wildlife photographers, and roadside sightseers. Three of America's four desert ecosystems--the Mojave, the Great Basin, and the Sonoran Deserts--meet in Lake Mead NRA. As a result, this seemingly barren area contains a surprising variety of plants and animals, some of which may be found nowhere else in the world.

The California Trail carried over 250,000 gold-seekers and farmers to the gold fields and rich farmlands of California during the 1840's and 1850's, the greatest mass migration in American history. Today, more than 1,000 miles of trail ruts and traces can still be seen in the vast undeveloped lands between Casper Wyoming and the West Coast, reminders of the sacrifices, struggles, and triumphs of early American travelers and settlers. More than 240 historic sites along the trail will eventually be available for public use and interpretation. The trail passes through the states of Missouri, Kansas, Nebraska, Colorado, Wyoming, Idaho, Utah, Nevada, Oregon, and California.

Cactus and chocolate? Surprisingly, they work well together. Take a self-guided free tour of the chocolate factory and the 2.5 acres of surrounding grounds with over 350 species of cactus, succulents and desert plants from the Southwest and other deserts of the world. Visitors can also view the Living Machine™ as part of the self-guided Cactus Garden tour. The Living Machine™ is an acre of waste-consuming ecologies in tanks, marshes and reed beds transforming wastewater into water clean enough to be used for landscape irrigation.

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

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.

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.