Layers of the Earth
The Earth's Crust
What is the outermost layer of the earth consisting of soil and rocks?
Pangea
What is a giant "super continent" where the tectonic plates were joined together.
A rock formed from intense pressure.
What is a sedimentary rock?
This rock has crystal formations on the inside.
What is a geode?
A cylinder shaped fossil with ridges.
What is a crinoid?
The second layer of the earth which is made of rocks and magma.
What is the mantle?
The reason that Indiana has ocean fossils.
Indiana was covered in a low, warm, sea.
A rock formed from intense pressure and heat.
What is metamorphic rock?
This rock is shiny and black like glass.
What is Obsidian?
A fossil that looks like a clamshell.
What is a brachiopod?
This layer is made of liquid and is very hot.
What is the outer core?
The thick ice layer that covered Indiana about 20,000 years ago.
What is a glacier?
A rock formed from intense heat.
What is igneous rock?
Amethyst
Crystal form that is usually purple
This fossil looks like a small horseshoe crab.
What is a Trilobite?
This layer is solid due to the intense pressure that it receives.
What is the inner core?
Torrent
What is a melted glacier the rushes through the land, tearing it up as it goes?
Any type of rock can be changed into a new sedimentary rock by breaking down with this process.
What is weathering?
This rock looks like gold.
What is pyrite?
This fossil looks like a swirl.
What is an ammonite?
These plates are massive and made of solid rock; they sit on top of the mantle and move slowly causing the earth's crust to change shape.
What are tectonic plates?
The remains or impresson of any living thing from the past.
What is a fossil?
Erosion
The process of moving broken down sediment from one place to another.
This rock used to be a coral reef that is now limestone sedimentary rock.
What is Hanging Rock?
This fossil usually has an insect embedded in a golden rock.
What is amber?