Monday, August 29, 2011

A Scientific look at the Age of Earth

As part of our inquiry into dinosaurs the students in Room 10 rolled out a 47 metre long strip of paper which represented the 4.7 billion year old Earth (according to most Scientists) from the Big Bang to today. 
Our scale was 1cm = 1 million years in time.
 Students got to place key events in history 
Big Bang, first oxygen, first life, first bird, first dinosaur, dinosaur extinction, first humans.

We found that 65cm (65 million years) from start of the time was when the Dinosaurs became extinct and just over 2 metres (225 million years) from the start was when the first dinosaurs were walking the planet (Scientists believe they lived for about 160 million years).
 

About 5 metres (500 million years)  from 'today' was when the first life appeared in the oceans.

And only 1 millimetre (100,000 years) from the start was when the first humans are believed to have existed!!!

47 metres (4,700,000,000) from the start of our time line Scientists believe the Earth began to form after a Big Bang. 

We got to discuss what life would have looked like at different times in the Earth's history and used books and our knowledge to help us draw life through the ages.
IT WAS VERY POWERFUL!!! - TRY IT AT HOME.

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