%20 <nsdl_dc:nsdl_dc schemaVersion="1.01.001" xmlns:nsdl_dc="http://ns.nsdl.org/nsdl_dc_v1.01" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dct="http://purl.org/dc/terms/" xmlns:ieee="http://www.ieee.org/xsd/LOMv1p0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://ns.nsdl.org/nsdl_dc_v1.01 http://ns.nsdl.org/schemas/nsdl_dc/nsdl_dc_v1.01.xsd"> nsdl_dc:GEM Science nsdl_dc:GEM Earth science nsdl_dc:GEM Physical sciences nsdl_dc:GEM Meteorology nsdl_dc:GEM Geology nsdl_dc:GEM Geography nsdl_dc:GEM Oceanography nsdl_dc:GEM Chemistry dct:W3CDTF PhysicalObject dct:DCMIType Collection dct:DCMIType Dataset dct:DCMIType Event dct:DCMIType Image dct:DCMIType InteractiveResource dct:DCMIType Service dct:DCMIType Software dct:DCMIType Sound dct:DCMIType Text dct:DCMIType PhysicalObject dct:URI dct:ISO639-2 dct:Box </nsdl_dc:nsdl_dc> application message video audio image model multipart text dct:IMT dct:IMT application/pdf video/quicktime video/quicktime image/jpeg image/jpeg image/jpeg image/gif text/plain text/html dct:URI nsdl_dc:GEM Agriculture Biology Ecology Education (General) History of science Mathematics Natural history Paleontology Physics Astronomy Space sciences Technology dct:Period dct:W3CDTF dct:W3CDTF