Fossils
The remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.
What is a Fossil?
The process of determining if one rock or geologic event is older or younger than another, without knowing their specific age
4.6 Billion Years
What is The Age of the Earth?
Strata in order from oldest to youngest
What is E, C, B, D, A?
If a fault or other body of rock cuts through another body of rock then it must be younger in age than the rock through which it cuts and displaces.
What is the Law of Cross Cutting?
A fossil of a footprint, trail, burrow, or other trace of an animal rather than of the animal itself.
What is a Trace Fossil?
The process by which an element loses energy by releasing protons or neutrons to achieve stability.
What is Radioactive Decay?
65 million years ago
What is when dinosaurs went extinct?
The events in order from oldest to youngest
What is E, D, C, F, B, H, A?
If a rock body (Rock B) contained fragments of another rock body (Rock A), it must be younger than the fragments of rock it contained
What is Law of Inclusions?
What is an Index Fossil?
The amount of time it takes for 1/2 of a radioactive element to become stable.
What is half-life?
A major division of geological time, subdivided into eras
What is Eon?
The order of events from oldest to youngest.
What is A, B, D, E, C, H, F, G?
Layers of sediment are originally deposited horizontally under the action of gravity.
What is the Principle of Original Horizontality?
Burying of an organism under sediments allowing for organic matter to decompose without disruption.
What is How Are Fossils Made
Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.
What is an Isotope?
The age of reptiles
What is the Mesozoic era?
The order of events from oldest to youngest.
What is I, B, F, M, H, R?
Place the events in order of time: Insects evolve, Oceans Formed, Dinosaur Extinction, Life evolves, Snowball Earth, Tectonic Plate Activity, Present Day, Earth Forms
What is: Earth Forms, Oceans From, Life Evolves, Tectonic Plate Activity, Snowball Earth, Insects Evolve, Dinosaur Extinction, Present Day
Body, Trace, Cast, Living, Carbon Film and Petrified Wood.
What are the 6 types of fossils?
The process by which a numerical age of a rock is determined.
What is Absolute Dating?
When Humans Evolved
What is 130,000 years ago?
The order of events from oldest to youngest.
What is 1, 2, 3, 4, 5, 6, A, 7, 8, 9, 10, 11, Fault, B, 12
What are the 5 qualities of a mineral?
Inorganic, Crystalline Structure, Solid at room temperature, natural, definite chemical composition