Science Common Sense

1146 - What are soil and fossils composed of?

Soil is composed of: 1. Minerals from rocks (like sand, silt, and clay) 2. Organic matter (like decayed plants and animals) 3. Living things (like tiny insects and microorganisms) 4. Water 5. Air

Fossils are composed of: 1. Minerals from the ground (that seep into the spaces of the organism) 2. Original organic matter from the organism (like bones, shells, or plants) 3. Sometimes, impressions of the organism's shape and details can be left in the rock.