1 The figure may vary from around 2,700 to 28,00 pounds per cubic yard. 2  Some companies will just use a round figure of 3000 pounds per cubic yard. 3  Not all trucks will hold 20 tons per load. 4  Again, find out from the dealer how big a truck load is.
Earth/Space Science is one of five science courses offered at the high school level. The earth/space science curriculum addresses literacy in the form of vocabulary, fluency, comprehension and writing.
Academic programmes in astronomy blend theoretical lectures in mathematics and astrophysics, with observatory practices, computer programming and simulations. Space studies deliver knowledge regarding space sciences, management, operations and economy. Students deal with subjects covering the mechanics behind space stations, satellites, space crafts and transportation systems. Many graduates choose to continue their studies in research, in a specialised area of astronomy.