Science is built of facts the way a house is built of bricks,
but an accumulation of facts is no more science
than a pile of bricks is a house.

- Henri Poincare'


Key words or concepts:
Origin of Solar System (question)
Observations about our solar system
Nebula Hypothesis
Earth origin as cold homogenous ball
Methods of heating the earth
Differentiation by density
Formation of atmosphere and oceans by outgassing
Earth's present state:
heavy core made of metals
crust made of Si, O, Al
intermediate mantle
movement of plates - moutainbuilding, earthquakes
atmospheric properties - erosion and deposition
rock cycle

Useful links:
Solar System pictures
Earth


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