The Summative Assessments are aligned with the Common Core State Standards (CCSS) for English language arts/literacy (ELA) and mathematics. The tests capitalize on the strengths of computer adaptive testingâefficient and precise measurement across the full range of achievement and timely turnaround of results.
Kola wellâs derrick in 1980: still the worldâs deepest hole (Credit: Wikipedia) Decades ago, the Russians drilled deeper than anyone has ever gone. Their Kola Superdeep Borehole was started in 1970 and still holds the world record for the deepest hole in the ground. But they didnât reach the mantle.
Inside the world's deepest blue hole. Plummeting to depths of 300m (987ft), researchers say this sinkhole in the South China Sea is the deepest in the world. See More. Plummeting to depths of 300m (987ft), researchers say this sinkhole in the South China Sea is the deepest in the world. U.S. Edition.