Rocks
This surface process breaks down rocks into smaller pieces using wind, water, or ice.
What is weathering?
Scientists who specialize in studying fossils and ancient life are known by this title.
What is a paleontologists?
These are the remains or traces of ancient life preserved specifically within sedimentary rock layers.
What are fossils?
What is formed by continuous movement of contenantal plates.
What is a mountain?
What was the name of the Allosaurus in Thermopolis?
Who was Stan?
This is the movement of weathered rock pieces by wind, water, or ice.
What is erosion?
The fossilized remains of this creature, whose name means "three lobes," are among the most common marine fossils in the world.
What is a trilobite?
What was the bottom layer of earth in the beginning?
What is the ocean or sea.
This type of sedimentary rock forms from the remains of ancient dead plants and trees in swamps.
What is coal?
This is the endless natural process where rocks slowly change from one type into another over millions of years.
What is the rock cycle?
The fossil record shows a massive boom in diverse animal life about 540 million years ago, an event named after this geologic period.
What is the Cambrian Period?