Tectonic Plates
Two Earth processes that cause unconformities in sedimentary rock
What are earthquakes (faults) and volcanoes (magma/lava/igneous rock)?
Explains how a marine fossil would be found on a mountaintop.
What is an convergent fault/mountain formation/tectonic plate movement?
______ dating is most accurate way to determine the actual age of a fossil
What is absolute (radioactive) dating?
Theory that explains how living organisms have changed over time.
What is the Theory of Biological Evolution?
Vertical timeline that documents summers and winters
What are ice cores?
This idea proves how fossils of animals who can't swim can appear on all continents that are now separated by oceans
What is Pangaea (or Continental Drift)?
This element isotope is used to determine previously-living fossils that are not older than 60,000 years old
What is Carbon-14?
The amount of time it takes for half of the Carbon-14 atoms to change into Nitrogen atoms
What is 5,700 years?
Two scientific facts gained by studying tree rings
What are 'the age of the tree' and 'drought patterns'
Fossils that existed for a short life span, existed all over the world, and are used to tell the age of the rock they are found in...
What are index fossils?
The radioactive isotope most commonly used to absolutely date rocks and fossils
What is Uranium-235 (or 238)?
These are used to determine the history of the Earth's atmosphere
What are ice cores?
This type of rock is formed from heat and pressure within the Earth
What is metamorphic rock?
Fossils that show how organisms evolved over time.
What are transitional fossils?
________ dating estimates the age of a fossil by using the Law of Superposition
What is relative dating?
The atmospheric chemical compound that appears most often in ice cores
What is Carbon Dioxide?
This type of rock is formed from erosion of igneous rock
What is sedimentary rock?
Volcanic eruptions in ancient history can be documented using this fossil
What is ice core?
Processes on Earth that happen today have happened in the past and will continue to happen in the future
What is uniformitarianism
Organisms that are fossilized exactly as they were when they were living
What are original remains?