Manual de Escavação de Dinossauro

8/18/2019 Manual de Escavação de Dinossauro

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EXPERIMENT MANUAL

WARNING — THIS SET CONTAINS CHEMICALS THAT MAY BE HARMFULIF MISUSED. READ CAUTIONS ON INDIVIDUAL CONTAINERS AND IN MANUALCAREFULLY. NOT TO BE USED BY CHILDREN EXCEPT UNDER ADULT SUPERVISION.

1ST EDITION 2014© 2014 THAMES & KOSMOS, LLC, PROVIDENCE, RI, USA ® THAMES & KOSMOS IS A REGISTERED TRADEMARK OF THAMES & KOSMOS, LLC.PROTECTED BY LAW. ALL RIGHTS RESERVED. WE RESERVE THE RIGHT TO MAKE TECHNICAL CHANGES.THAMES & KOSMOS, 301 FRIENDSHIP ST., PROVIDENCE, RI, 02903, USA1-800-587-2872 WWW.THAMESANDKOSMOS.COM

FRANCKH-KOSMOS VERLAGS-GMBH & CO. KG, PFIZERSTR. 5-7, 70184 STUTTGART, GERMANY+49 (0) 711 2191-0 WWW.KOSMOS.DEPRINTED IN TAIWAN / IMPRIMÉ EN TAÏWAN


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SAFETY

Safety Rules

Read these instructions before use, followthem and keep them for reference.Keep young children, animals and thosenot wearing eye protection away from theexperimental area.Always wear eye protection.Store this experimental set out of reach of

children under 7 years of age.Clean all equipment after use.Make sure that all containers are fullyclosed and properly stored after use.Ensure that all empty containers aredisposed of properly.Wash hands after carrying outexperiments.Do not use any equipment which hasnot been supplied with the set orrecommended in the instructions for use.Do not eat or drink in the experimentalarea.Do not allow chemicals to come intocontact with the eyes or mouth.Do not replace foodstuffs in originalcontainer. Dispose of immediately.

First AidIn case of eye contact: Wash out eye

with plenty of water, holding eye open ifnecessary. Seek immediate medical advice.

If swallowed: Wash out mouth with water,

drink some fresh water. Do not inducevomiting. Seek immediate medical advice.In case of inhalation: Remove person tofresh air.In case of skin contact and burns: Washaffected area with plenty of water for atleast 10 minutes.

In case of doubt, seek medical advicewithout delay. Take the chemical and itscontainer with you.In case of injury always seek medicaladvice.

CAUTION!For plaster (gypsum):May cause eye and skin irritation.Avoid breathing dust. Do not get in eyes, onskin, or on clothing.Wash hands thoroughly after handling.Do not ingest. Use only as instructed.

WARNING!Not suitable for children under 3 years.There is a risk of choking due to small partsthat can be swallowed or inhaled.Keep the packaging and instructions, asthey contain important information.


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EXPERIMENT MAKE A DINO FOSSIL

1. Mix one packet ofplaster powderand one measuringspoonful of waterin the mixing tray

until the mixture issmooth.

2. Pour themixture intothe mold.


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5. Let the plaster hardenuntil it is completely

solid. This will takeabout a day.

6. After the plaster hashardened, push the plasterblock out of the mold.


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7. With the tools, carefully scrape some of the plasteraway, revealing the top of the dinosaur. Be very

careful not to damage the dinosaur skeleton. It is upto you how much plaster you want to remove. If youremove enough plaster to reveal the top half of thedinosaur, then you will have a nice fossil model thatyou can display on your desk or shelf.


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Millions of years ago,when a dinosaur died,its flesh quickly decayed.Even its enormous bonesdisappeared after a few

years. However, in somecases the bones didn’tdisappear — for example,if they were embedded

in mud or sand thatprevented decay andpreserved them.

In time, more layers were added on top of them. Thebone gradually decayed, but subterranean water seeped

into the resulting hollow spaces and left solid mineraldeposits there. In that way, the embedded bones becamefossilized. Over the course of millions of years, rain and wind

carried away the overlaid rock layers, and the bones wererevealed once again.

HOW DINOSAUR FOSSILS FORMED


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In order to study thebones and display

them in museums,prehistoric researchersfirst have to scratchaway the surroundingrock and excavate the

bones. They do theexact same thing thatyou are doing withthis kit. The fossilized

bones are usuallyrecognizable by theirsomewhat differentcolor or hardness.But because they

can’t know ahead of time where in therock the bones might lie, they have to work very carefullyso that they do not damage anything — just as you haveto work with care as well. Eventually, they will have a

collection of bones that then have to be assembled intoa skeleton.

Manual de Escavação de Dinossauro

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