Earth's Basics I
The portion of the interior beyond the crust. It extends a depth of 2,900 km.
What is the mantle?
This is the most common element by percentage found in the atmosphere.
What is nitrogen?
The earth spins on this
What is the axis?
Weight is measured in this __________ and mass is measured in this _________
Newtons (N) and Kg
the outermost solid part of the earth.
What is the crust?
Part of the mantle and the crust; a rigid layer between 15 and 300 km thick.
What is the lithosphere?
A force of attraction between all matter.
What is gravity?
The upper portion of the mantle.
What is the asthenosphere?
Below the asthenosphere is a layer of solid mantle rock.
What is the asthenosphere?
What is the difference between the geosphere and the biosphere
the geosphere is abiotic (non-living) and the biosphere is biotic (living)
A broad, well-substantiated, and widely accepted explanation for a large body of evidence, built from many tested hypotheses and providing a unifying framework for understanding.
What is a theory?
The center of the earth is a sphere whose radius is about 3,500 km and is made up of mainly iron and nickel.
What is the core?
The part of crust that makes up the continents is called . . .
The continental crust?
Name the 4 spheres.
Atmosphere, hydrosphere, geosphere, biosphere
Vibrations that travel through earth.
What are seismic waves?
Two factors that destroy fossils in other types of rock
What are heat and pressure?
These are confirmed by experiments, or they have been observed so many times they are assumed to be true.
What are scientific laws?