Tag: erosion

Classroom Ideas, Current Event Connection, Geography In the News, Main

Africa Is Rifting Apart, But This ‘Crack’ in Kenya Doesn’t Have Much to Do With It

SCIENCE A widely reported crack in the Great Rift Valley was not formed by tectonic movement, but by erosion of soil from recent heavy rains. (The Guardian) What is the Great Rift Valley? Teachers, scroll down for a quick list of key resources in our Teachers Toolkit. Discussion Ideas Enormous earthen cracks have emerged around Mai Mahiu, an area in Kenya’s Rift Valley Province, making people … Continue reading Africa Is Rifting Apart, But This ‘Crack’ in Kenya Doesn’t Have Much to Do With It

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Classroom Ideas, Current Event Connection, Main

Sand Mining Threatens Ecosystems and Endangered Species

ENVIRONMENT Across Asia, rampant extraction of sand is eroding coastlines and scouring waterways. San mining is taking a toll that scientists are beginning to assess—and environmentalists hope to reduce. (Science) How do miners “quarry” sand? Use our resource to learn more. Teachers, scroll down for a quick list of key resources in our Teachers Toolkit. Discussion Ideas Sand mining is a multi-billion dollar industry, practiced … Continue reading Sand Mining Threatens Ecosystems and Endangered Species

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Current Event Connection, Geography In the News, Main

How Old is the Grand Canyon?

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?

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