DK Tasa, Inc.

Explore the three types of rock found on Earth and understand the geologic processes that create and

Focus on Earthquakes provides a comprehensive description of the causes and consequences of earthqua

Discovering Continental Drift introduces students to Alfred Wegener and his continental drift hypoth

In this app, students discover the theory of plate tectonics, which states that Earth’s outer shell

Grand Canyon National Park Geology Tour is a photographic tour of the South Rim of the Grand Canyon

A comprehensive glossary of terms and definitions related to plate tectonics with visuals that inclu

Smoothly slide tiles along rows and columns of a grid of mineral crystals. Match pairs of mineral cr

This app introduces students and teachers to Earth’s minerals in an interactive guide that illustrat

Arches National Park Geology Tour provides an illustrated and narrated introduction to the geology o

Investigations include:• using the known ages of microfossils to help determine ocean floor ages,• d