the sun SJTB

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the sun SJTB Powered By Docstoc
					By Zoë Barker and Lauren Hobson
St. John The Baptist Primary School
Our sun is a star located at the centre of our Solar
System . It is a huge, spinning ball of hot gas and
nuclear reactions that lights up the Earth and provides
us with heat.
Since the Sun formed 4.5 billion years ago, it
has used up about half of its initial hydrogen
supply.
The sun is a star just
like those you can see at
night .
The Sun gives us light for
plants food and heat so it is
not too cold for us to live.
Our Sun is a second or third generation star.
Second generation stars do not just burn
hydrogen, they also burn heavier elements,
like helium and metals (elements heavier
than hydrogen and helium), and were formed
from supernova explosions (the debris of
exploded population II stars).
The Sun is very important
so look after it.
For watching

				
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posted:10/4/2012
language:English
pages:8