In this atlas terms and definitions online interactive worksheet, students read the definitions and match them with Atlas vocabulary words. Students match 49 answers.

Students create models of the three major types of volcanoes and determine how a volcano's shape is related to the type of material erupted. They then observe a demonstration that simulates the nature of two volcanic materials: lava and...

The U.S. Geological Survey (USGS) scientists are assessing hazards at many of the almost 70 active and potentially active volcanoes in the United States. In this article, learn how they are closely monitoring activity at the most...