Bite-size introduction to two scientists-Hubble and Lemaitre-who played key roles in formulating the theory of the origin of the universe known as the big bang. Includes an interactive timeline on which you can plot out the approximate...

This site presents a collection of scientific learning resources for educators, parents, kids, after-school coordinators, informal learning center staff, and anyone else interested in teaching or learning about science. The site provides...

Find out about the life and work of the father of the Big Bang theory, Georges Lemaitre. This article describes the origin of the cosmology theory and its growing acceptance among scientists. This is an excerpt from COSMIC HORIZONS:...

Flip this interactive OLogy card to find questions and answers, fast facts, and other bite-size pieces of information to help you understand important characteristics of the Broad-tailed Swallowtail, the national butterfly of Taiwan.

Did you ever wonder where tapioca pudding comes from? Did you know that cacao beans were once used as money? Learn about the human uses of plants (to make common foods and medicines) at the Global Grocery.

Scientists from the University of Arizona are conducting Y chromosome research on native Siberians to try to determine whether there is a genetic affinity to North American native people. The rationale and direction of this research are...

This is the online version of the Smithsonian Institute's exhibit devoted to the people of the Siberian and North American Arctic. The mannequins around the walls represent the peoples of the Crossroads region, dressed in traditional...

Understand the importance of the mapping done by Lewis and Clark as you work through these learning exercises and learn mapmaking skills yourself.

A thorough look at the Chumash people of California. Read about their unique plank canoes, basketry, language, and cave paintings. Many pictures of artifacts and drawings accompany the information.

Flip this interactive OLogy card to start learning about the California condor. Review some fast facts about condors and answer multiple-choice and fact-or-fiction questions to test your understanding.

Visitors to this resource will discover the new things that scientists are learning about dinosaurs by paging through the information about this comprehensive exhibition.

Fun, interactive game that helps students identify interrelationships in an ecosystem. For six or more players.

An illustrated how-to for understanding how to read and extract information from the periodic table.

What does it take to keep our planet livable? What are the things we need to sustain life? The Bio-Benefits site answers these questions and others pertaining to basic life needs. Click on the hyperlinked words to see interactive...

Click on the country name to travel to the Bahamas, Madagascar, and Australia to see what scientists are learning about different species, what roles they play in their ecosystems, and how we can best protect them. Click on the starred...

Learn a few facts about the Jurassic period from this interactive Ology card that also includes questions that can be answered. There is some information about Pangaea and dinosaurs.

Uncover facts about invasive species by turning over this interactive OLogy card.

What is igneous rock? How is it formed? What makes igneous rock different from sedimentary rock or metamorphic rock? This interactive OLogy card answers these and similar questions.

Check out this interactive OLogy card to learn about hydrothermal vents, also known as black smokers.

Review essential information about the Triassic Period on this short, interactive card. Includes facts about Pangaea. Try answering questions when you're finished.

Find fast facts about surveying archaeological sites by flipping over this interactive card. Also, answer quiz questions to test your knowledge about mapping and measuring.

Here's an Ology Card about the Solar System, offering a small image, a definition, and information on how "far out" our Solar System is. Includes questions to quiz your knowledge and quick facts about the Solar System's size, rotation...

Uncover fascinating facts about the Madagascar by flipping over this interactive OLogy card.

Flip over this interactive OLogy card to learn about mangrove forests and their importance to coastal ecosystems.