clay - a material from the earth made of small particles of rock, decomposition - the breaking down of dead plant and animal material, humus - a material that is made up of broken-down parts of dead plants and animals, rock - a mixture of minerals that forms a hard, nonliving part of Earth, sand - tiny pieces of rock found on beaches and in the desert, soil - a mix of tiny rocks and bits of dead plants and animals, weathering - slow process that breaks rocks and other Earth materials into smaller pieces,

6.1- Soil Formation

Ledertavle

Visuell stil

Alternativer

Bytt mal

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