Corrugated cardboard has two main components: the linerboard and the medium. Both are made of a special kind of heavy paper. Linerboard is the flat facing that adheres to the medium. The medium is the wavy fluted paper in between the liners. Single Wall is manufactured with the medium between two sheets of linerboard. Double Wall has three sheets of linerboard with two mediums in between.
A new Microsoft-commissioned survey shows European girls lose interest in STEM subjects around the age of 15. Microsoft admitted it doesn't have a comprehensive explanation for why 15-year-old girls lose interest in science and math.
The government has discouraged schools from entering younger pupils for exams, so fewer 14- and 15-year-olds are taking GCSEs early. At the same time, a policy of requiring pupils to re-sit maths and English, if they failed to get at least a C grade, means more 17-year-olds are taking the exams.here were improvements in A* to C grades for physics, chemistry and biology. But fewer pupils taking the double science GCSE achieved good grades. The numbers of exam entries for separate sciences-physics, chemistry and biology-had all fallen.