Describes the formation and characteristics of sedimentary rocks. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.
Text and photographs look at gemstones. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.
Describes the formation and characteristics of sedimentary rocks. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.
An exploration of crystals that covers what they are, where they are found, how they grow, their uses, and more. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.
Did you know that people called the Tainos lived in Puerto Rico more than 800 years ago? Some English words, such as barbecue and hammock, come from the Taino language. Discover more exciting facts about the history, geography, and symbols of this state.
