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.
The deepest man-made hole in the Earth is located in the Kola Peninsula in northwestern Russia. The depth achieved from the surface was 12,262 meters, roughly 7.5 miles. The â¦ 9 bore hole was created by a rotating bit spun by the pumping of drilling mud. Unexpectedly high temperatures caused the stoppage of the drilling in 1994, 24 years after drilling was started.