Rock is composed of different combinations of minerals. Smaller rocks come from the breakage and weathering of bedrock and larger rocks. Soil is made partly from weathered rock, partly from plant remains--and also contains many living organisms. Benchmark 4C The Physical Setting: Processes that Shape the Earth Grades 6-8, page 73
The Celts (/ËkÉlts/ , occasionally /ËsÉlts/ , see pronunciation of Celtic) were people in Iron Age and Medieval Europe who spoke Celtic languages and had cultural similarities, although the relationship between ethnic, linguistic and cultural factors in the Celtic world remains uncertain and controversial.
Who Were the Celts? The Celts have a bad rap. Popularly imagined as something between drunken, kilt-wearing buffoons and Braveheart, they're confused with Vikings and are often jumbled up with contemporary nationalism, stoking particularly strong feelings in modern-day Britain and Ireland.