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Ch.3.3EarthTakeShape

Solar System

QuestionAnswer
These bodies collided and combined to form Earth planetesimals
These two factors caused the shape and structure of Earth gravity and heat
What happened to the heavier and lighter elements as rocks melted and Earth's layers formed? they separated
The layer of Earth that extends to the planet's center core
The middle layer of Earth mantle
The layer of Earth that has the lightest elements crust
The process used by early life forms to release oxygen into Earth's atmosphere photosynthesis
Scientists think that Earth's first atmosphere was made up of these two gases carbon dioxide and water vapor
Scientists think oceans may have formed after millions of years of this happening rainfall
Created by: schlanda
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