ENVIRONMENT A not-so-grand canyon has opened in the Arizona desert. How? Why? (Forbes) Learn more about the forces that create earth fissures with our activity. Teachers, scroll down for a quick list of key resources in our Teachers Toolkit. Discussion Ideas The big crack in the Arizona desert is called an earth fissure. What is an earth fissure? Earth fissures are associated with land subsidence, … Continue reading Another Canyon in Arizona
SCIENCE To the untrained eye, the Grand Canyon might just look like one big hole in the ground. But to some scientists, the American Southwest’s iconic gorge is increasingly looking like several ancient canyons of different ages, stitched together by erosion. (National Geographic News) Use our resources to color-code the Grand Canyon’s ages. Discussion Ideas Look at our cool coloring page of the Grand Canyon. … Continue reading How Old is the Grand Canyon?