my fossils

7/31/2019 My Fossils

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Today we will be learning

two things: How to interpret thedifferences between

fossils How to compare modernday animals with fossil

remains


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Fossils are the remains orimpressions left by plants ofanimals that lived a very long time

ago. The fossils may look the sameas when the plant or animal wasalive, but have now changed tostone.


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Paleontologistsare people whostudy ancientlife. Becausethey study lifeforms that are

now extinct, theyrely on fossilsto learn about

life in the past.


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The usual timeframe forfossilization is

anywhere from10,000 years to500,000,000

years. Giant sharktooth

25 Million years


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You can find fossils practicallyeverywhere. High on mountains,

underwater, in the desert, on thebeaches or deep underground.Fossils often become exposedduring mining or the construction

of roads.


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Living things(usually aquatic)die and then get

buried quicklyunder sand, dirt,clay, or ashsediments.

Usually, the softparts decay, orrot away, leavingthe hard parts

behind.


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As time goes onmore and moresedimentaccumulates.Pressure, heat,and chemical

reaction cause thesediments toharden into rockcalled sedimentary

rock.


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Finally,

through erosioncaused byweather, wind,and water, the

fossils becomeexposed at the

surface again.

Movements inthe earthscrust, pushesthe layers ofsedimentaryrock back upto higher

ground.


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If you think the animal

looks like another that

we know today 3 features you noticeabout the remains

Where you think it may


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Where do you think thisanimal lived?

Circle one.

Land Water Air(couldfly)


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What is another animal we knowtoday that has the same qualities

as the remains in the picture?Which part of the animal?


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You need to travel around to thepictures posted around the room toinvestigate more fossils from

around the world. Make sure you follow the same setup

we just practiced. You will have 3

minutes at each station to talk withyour group and fill out theworksheet.

When the timer goes off you need to

rotate clockwise to the next


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When the time is up and you have traveledto all the locations please return to yourseat.

At this time you need to choose one fossil

to write about. You need to write a paragraph about:

What the animal is, where it lived,imagine a year it was alive, and how the

features it had helped it survive. You also need to discuss another animalit may have resembled and why.

You also need to sketch what the animal

looked like when it was alive.

my fossils

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