HEATKEYS

Definition of word from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games.

IRIS is a consortium of universities dedicated to the operation of science facilities for the acquisition, management, and distribution of seismological data.

The Seismological Society of America (SSA) is an international scientific society devoted to the advancement of seismology and its applications in understanding and mitigating earthquake hazards and in imaging the structure of the earth.

View hundreds of free videos from National Geographic, featuring animal videos, weather videos, nature videos, world music videos and other most popular video content including shark videos.

Geology and Earth Science current events, news, articles, dictionary, satellite images, career information, reference maps, and more.

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A complete reading program with affordable books, lesson plans, worksheets and assessments to teach leveled reading, phonics, phonemic awareness, alphabet, vocabulary, and comprehension to K-5.