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 holes in the world. Whether they're man-made mines or natural sinkholes, these massive holes around the world are anything but the pits. 1. Deanâs Blue Hole: Long Island, Bahamas. At more than 650 feet deep, Deanâs Blue Hole is the worldâs deepest sinkhole with an entrance below water. Located in a bay near Clarence Town on the Bahamasâ Long Island, its visible diameter is roughly 82â115 feet.