Type of Rocks
Compacts dirt clay and sand together.
What is sedimentary rocks?
This process changes sediments to a sedimentary rock.
What is compaction and cementation?
This type of weathering creates honeycomb rocks.
What is salt weathering?
The remains of a prehistoric creature in a mold or shell.
What are fossils?
This was a super continent discovered by Alfred Wegener.
What is Pangaea?
Compacted with heat and pressure.
What is metamorphic rocks?
This process changes metamorphic rocks to magma.
What is extreme heat?
Weathering common in desert climates.
What is heat expansion?
The most common rock to find a fossil in.
What are sedimentary rocks?
The earth was formed how many years ago.
What is 4.5 billion years ago?
Magma cooling over earths surface.
What is extrusive igneous rock?
This process changes igneous to metamorphic.
What is heat and pressure?
Water goes in the crevices and freezes and splits open the rock.
What is frost wedging?
This shelled creature was around 520 million years ago.
What is a trilobite?
Humans came to earth when.
What is 200,000 to 400,000 years ago
Magma cooling under earths surface.
What is intrusive igneous rocks?
This process changes a sedimentary to a metamorphic.
What is erosion than heat and pressure.
The type of weathering that clay formation is.
What is mechanical weathering?
This kind of fossil shows different time periods.
What is an index fossil?
The earth water used to be what color.
What is green?
Obsidian rocks are.
What is extrusive?
This sedimentary rock changes to magma.
What is high temperature and pressure?
The prosses of igneous rocks being uplifted and causing surounding rocks to split
What is pressure release?
The first dinosaur fossil ever found?
What is a Megalosaurus?
Earth was formed from what.
What is meteors colliding?