Download Fossil Eyes With relative dating a geologist can tell if an event or an

Fossil Eyes
With relative dating a geologist
can tell if an event or an object is
younger or older than another one is
So how do they achieve this mission?
‘cos younger rocks lie above older rocks
it’s the principle of superposition
With absolute dating a geologist
can tell how many years an object has existed
radiometric dating is a common method
So how does it all relate then?
‘cos fossils tell us what the world was like in the past
and here are some ways to make them...
An organism’s tissue pores are filled with minerals
in permineralization.
Insects get stuck in tree sap which hardens to
an amber preservation.
And some of the best fossils are frozen and kept
in a state of refrigeration.
With the geological timescale a geologist
divides the long history of planet Earth
eons into eras and then periods
then epochs
And evidence of life is preserved in fossils
so here are some things to think of...
An organism’s tissue pores are filled with minerals
in permineralization.
Insects get stuck in tree sap which hardens to
an amber preservation.
And some of the best are quickly frozen and kept
in a state of refrigeration.
An organism’s tissue pores are filled with minerals
in permineralization.
Insects get stuck in tree sap which hardens to
an amber preservation.
And some of the best are frozen and kept
in a state of refrigeration.
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