MS-ESS2-2 Construct an explanation based on evidence for how geoscience processes have changed Earth’s surface at varying time and spatial scales.
This video explains how the Grand Canyon in Northern Arizona, USA was formed and is continuing to change.
In August of 2015 I got to travel to Arizona with a group of fellow science teachers to learn all about the Geology of this really interesting part of the world.
Besides a day trip to The Grand Canyon I also visited the Hoover Dam and Meteor Crater.