200
______ is a powder made of a mixture of calcined limestone and clay; used with water and sand or gravel to make concrete and mortar.
_____ is a brittle transparent solid with irregular atomic structure.
______ is a hard crystalline metamorphic rock used for sculpture and as building material.
_______ is a mixture of lime or gypsum with sand and water that hardens into a smooth solid, and is used to cover walls and ceilings.
_____ is a a fine-grained metamorphic rock that can be split into thin layers.
A _____ is rectangular block of clay baked by the sun or in a kiln and used as a building or paving material.
____ is a loose material consisting of grains of rock or coral.
A ______ is mixture of lime with cement, sand, and water, used in building to bond bricks or stones.
____ is the hard fibrous lignified substance under the bark of trees.
______ is the hard woody stems of ______ plants that are used in construction and crafts and fishing poles.
_____ is a building material consisting of a piece of rock hewn in a definite shape for a special purpose.
_____ is a material consisting of seed coverings and small pieces of stem or leaves that have been separated from the seeds.
___ is soil that has been soaked with water.
