Short answer: No.
Long answer: No it was not.
The Earth formed 4.6bn years ago, and the temperature of the core is currently 5200°c, and it's projected to go cold in something like 90bn years time, which is irrelevant as the Sun will turn into a Red Giant in around 5bn years time, engulfing the Earth and completely destroying it, so to answer your question, it takes a VERY long time for the Earth to cool down- so long in fact, that it will actually NEVER cool down.
Heat (infra red radiation) radiates into space at night, cooling the earth.
no
because its cool, yes cool... and when 2012 coming, u live on the moon, you can look how the earth going to die :)
The only way the earth is going to cool because of its motion is if it moves away from the sun. Another possibility though is that the sun will cool.
well according to the mians it makes sense because then the earth is not but will be adapted to Kenya.
cool
of Cool, Adapted to cool and refresh; allaying heat.
how do the earth's poles help cool the earth's temp
large ears to cool blood
The Tasmanian devil has adapted to the relatively cool climate of Tasmania, and its rugged, wild bushland.
becos they ae cool
Compress it and cool it Compress it and cool it Nathan G
It helps cool earths temp by the way the earth moves
there is a lot of cool cars on are earth
coz its proper cool
ice