What is Plate Tectonics and How Does it Work?

Alfred Wegener, a German scientist, developed the theory of plate tectonics in the early 1900’s. He published his ideas in a book titled The Origin of Continents and Oceans, in 1915. Wegener noticed that the continents on Earth looked like pieces of a jigsaw puzzle and believed that the continents were once connected.

Ask-A-Geologist Q&A #2: What is syenite used for?

What is the rock syenite used for?

Five Tips for Teaching Mineral Identification to Middle & High School Students

Middle and high school students should have some knowledge about the identification of rocks and minerals from elementary school. Early in their school career they likely learned about the basic differences in mineral types using identification properties such as streak, color and hardness to tell the difference in samples. In middle and high school, students can elevate their learning to use more identification properties to tell the difference between minerals that have several properties in common.