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.
Although the original plan was for the hole to be drilled to 15,000 meters (49,000 ft), the project was unable to proceed due to the temperatures encountered. In recent years a few longer boreholes have been drilled, but the Kola Superdeep Borehole still holds the record for the deepest artificial point on earth.