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.
Great Britain and adjacent islands in the 5th century AD, before the invasion and subsequent founding of Anglo-Saxon kingdoms. The Britons, also known as Celtic Britons or Ancient Britons, were an ancient Celtic people who inhabited Great Britain from the British Iron Age into the Middle Ages, at which point their culture and language diverged. They spoke the Common Brittonic language, the ancestor to the modern Brittonic languages.