This protective covering was made up of 100-inch-thick, 20-ton block of hard, white limestone, similar to marble but superior in hardness and in durability against the elements. ... A white cement that connected the casing stones and made them watertight is still intact and stronger than the blocks that it joins. ...

• Word Count: 1725
• Approx Pages: 7
• Grade Level: High School

VOCABULARY Archaeology: the scientific study of ancient people and cultures principally revealed through excavation. Cromlech: a circle of megaliths. Henge: a Neolithic monument, characterized by a circular ground plan. Used for rituals and marking astronomical events. Megalith: a stone of great size used in the construction of a prehistoric structure. ...

• Word Count: 10708
• Approx Pages: 43
• Grade Level: High School