What is Bedrock? | Iowa Land and Sky

PBS Learning Media
Contributed By
PBS Learning Media
Resource Type
Classroom Material
Keywords
Iowa PBS bedrock geology Iowa crust sediment glaciers geologic time Iowa geology Iowa landforms Iowa landscape geological landforms geological history surface processes surface materials alluvium river alluvium glaciation glacial sediment sedimentation bedrock sedimentary rock
Subjects
Science History-Social Science
Grade Levels
Grade 6 Grade 7 Grade 8 Grade 9 Grade 10 Grade 11 Grade 12
Audience
Classroom Teacher / Educator
Related Resources

What is Bedrock? | Iowa Land and Sky

Bedrock is the hard compacted material that underlies everywhere, and you can think of it as the uppermost crust of the earth. There are places in Iowa where the bedrock is right at the surface. There are other places in Iowa where glaciers have left behind soft sediments like soil, sand and gravel. Some places have over 600 feet of that glacial sediment.
Publisher
PBS Learning Media

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