Was the Civil War fought only due to slavery? Using an interactive web tool, scholars investigate the four main causes of the Civil War. Gathering evidence and data to support their claims, they present a final statistical breakdown...

Life's a beach! The 16th installment of a 23-part NOAA Enrichment in Marine sciences and Oceanography (NEMO) program first examines different types of coasts and how they form. An activity then has learners investigate the shoreline...