Fossilization
What are the steps of fossilization?
sedimentation, deposition, decay and crystallization
what is carbon dating?
it is measuring carbon 14 to see the age of a fossil.
what is relative dating?
seeing how deep the fossil is to see if its older or younger then other fossils
what is the half life of carbon 14?
around 5,700 years.
DAILY DOUBLE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
what is the earliest bird? (spell and say correctly)
Archaeopteryx pronounced ark·kee·aap·tr·uhks
does an animal have to be dead to become a fossil?
Yes
how do animals get carbon 14?
by eating
is relative dating accurate?
no, not really
what is the half life of plutonium
approximately 2,400,000 years or 2 million 4 hundred thousand years in words
are mummy's fossils?
NO
what are the types of fossilization that we learned about?
perminalization, trace fossil and amber fosiles
do animals keep getting carbon 14 after dying?
NO
how does a fossil get pushed down in relative dating?
layers of dirt and ash on the fossil
what is the half life uranium?
around 713,000,000 years.
is otzi a fossil?
NO, he is a mummy.
how does petrification occur?
1. volcano erupts turning water to steam
2. silicone is absorbed by whatever gets petrified
3. lastly, silicone hardens into stone
do animals have more or less carbon 14 then the atmosphere?
about the same amount
does relative dating work on a mountain?
yes, they measure distance from the surface
which element has the longest half life of uranium, plutonium and thorium?
thorium approximately with 13,900,000,000 years
can poo be a fossil if so what type?
yes, it is a trace fossil
can living things be fossilized in tar?
YES
at what year does carbon dating stop being accurate?
around 50,000 years.
does relative dating have a limit, if so how deep?
no, gos as deep as fossils can be found
how many years is 21 carbon 14 half lives?
around 119,700 years.
does a fossil have to be a animal or can it be anything else?
no it can be any living thing