Earth history
How does ice cores help show how the earth has changed over the years?
What is it shows information about how the atmosphere changed over time
What are the three major classifications of rock?
What is Igneous rock, metamorphic rock, and sedimentary rock
All of earth's continents used to be connected and that was called?
What is Pangea
What is Absolute dating?
What is it is the method in which the age of an object or event is estimated as an actual amount of years.
what does it mean to be extinct?
What is the species is no longer alive.
How old is the earth
What is about 4.6 billion years old
How long does the rock cycle take?
What is It takes hundreds of millions of years but since it has been happening throughout earth's history we never run out of rock.
What is the theory of plate tectonics?
What is the theory says that earth's outer layer is divided into a dozen or more brittle, rocky plates; these plates are always in motion because of earth's flowing upper mantle.
What is geological dating?
What is it is when we use fossils and rock formations to learn about the history of the earth
what are fossils?
What is remains or traces of an animal that is preserved in rock layers.
What is the geological time scale?
What is it arranges time intervals in to groups from the oldest to the most recent.
What is the origin of all rock?
What is magma
How do mountains form?
What is they form when 2 plates collide
What are the 2 types of geological dating?
What is Relative dating and absolute dating
what are adaptations?
What is, features that animals gain from living in there environment.
What is uniformitarianism?
What is it is a geological principle stating that process shaping the earth today operate the same way and at the same rates as they did in the past
What is the process by which rocks are transformed from one type to another and continually removed?
What is rock cycle
How do earthquakes happen?
What is when plates hit each other pressure builds up and when that is released a earthquakes happens
_____ states that younger rocks from on top of older rock layers?
What is the principle of superposition
What are index fossils?
What is fossils that we know are from specific times in history.
Time segments aren’t all the same amount of time, listed in broadest intervals of time there is eons, eras, periods and ______
Fill in the blank.
What is Epochs
What is lithification?
What is The process of loose sediments being formed into sedimentary rock
What is the seafloor spreading?
What is it is the movement of the earth's crust moving away from mid ocean ridges.
What is radioactive dating?
What is It is when a fossil age is calculated based on the amounts of certain radioactive materials it has in a sample.
What rock are fossils most commonly found in.
what is sedimentary rock?