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.
Along with the space agency, the National Oceanic and Atmospheric Administration (NOAA) keeps a constant watch on the hole above the Antarctic, which reached its annual peak on 11 September. The size of this yearâs hole at its largest point was 9.3 million square miles (24.1 million square kilometres) â almost identical to the maximum in 2013. It is far smaller than the largest single-day ozone hole ever recorded by a satellite, which was 11.5 million square miles (29.9 million square kilometres) in September 2000.