Rock Layers
Fossils can be found in this type of rock
What is sedimentary rock?
The time it takes for half of the radioactive elements to decay.
What is a half life?
A scientist who studies the Earth's crust as well as the processes and history that shaped it
What is a Geologist?
This term can be reffered to as the bottom layer being the oldest and the youngest would be the top layer
What is law of superposition
Solid copy of an organisms shape
What is a cast?
This type of rock can cool fast or slow
Radioactivity is used to find the exact date of rocks.
What is absolute dating?
Scientist that studies fossils
What is paleontologist?
A scientist who studies the Earth's crust
What is a Trace Fossil?
Rocks formed by heat and pressure
What is metamorphic rock?
When 3/4 of the radioactive elements have decayed.
What is 2 half lives?
What is relative age?
Simple single-celled organisms
What is Precambrian Time?
Carbon outline on rock
What is Carbon Film?
What is Unconformity?
Carbon-14 and Potassium-40
What is a radioactive element?
Earth's geological history represented on a chronological time chart
What is geologic time scale?
Era of Dinosaurs
Mesozoic Era
What is petrification?
Used to date rock in different locations
What is an index fossil?
an element that has broken down and released particles and energy
What is Radioactive?
Most accurate form of dating
What is radiometric dating?
Fault, extrusive, intrusive, unconformity
What is impacts on Law of Superposition?
Whole mammals can be preserved in this type of fossilization
What is tar and ice?