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Science quiz on the 8th in October (realative Dating)

What is horizon Number 1? Describe: Humus: Parts of soil made up of dead plants and animals
What is horizon Number 2? Describe: Top soil: contains a lot of humus, many small plants or animals
What is Horizon Number 3? Describe: Subsoil: Does not have a lot of Humus but has small rocks.
What is horizon Number 4? Describe: Bedrock: soild rock, most of the small rocks from the upper layer comes from bedrock
What are different types of soil? over 70,000 different types of soil in the united states
What is 4 types you can determend soil by: color, porisity, size of rocks in them, different minerals
4 types of soil: sand, clay (smallest particles), silt (combo of clay and sand), loam (humus, sand ilt and clay)
what is index fossils: used to show the approxitmate age of rocks
what is soil: mixture of small pieces of inorganic rock, minerals, organic compounds living organisms air and water
what is compounds: living organisms air and water
what is unconformity: rock layers that are not in their natural form happens of water wind glaciers no deposition occuring in the area and earthquakes
Created by: Grim_Reaper