El Lluís Checa ha vingut a l’escola per explicar-nos, als nens i nenes del Sol i de la Lluna, coses sobre la seva feina de paleontòleg.
Primer de tot ens va comentar la diferència entre un paleontòleg i un arqueòleg: els arqueòlegs estudien la cultura de l’home del passat, mentre que els paleontòlegs estudien els éssers vius del passat a partir dels fòssils que troben enmig de la terra.
També ens va explicar què és un fòssil, són restes o ossos que han estat enterrats durant milions d’anys i s’han anat convertint com en blocs de pedra, formant part de la terra.
Els fòssils que es troben, els porten als museus, perquè així la gent els pugui anar a veure. Els que s’han trencat o fet malbé, els porten a restaurar.
Cada vegada que desenterren un fòssil en una determinada zona, els van posant un número per saber quants n’han anat trobant.
El Lluís ens va ensenyar en directe les diferents eines que fa servir, com la cola, el martell,l’ escarpa, regles per mesurar,pinzells per treure la sorra…
Vam poder veure imatges d’una de les seves últimes troballes, unes tortugues de fa un milió d’anys.
Per acabar la xerrada ens va fer un experiment:en un bol de vidre va posar uns escuradents que representarien els ossos, llavors una pila de terrossos de sucre que significaven la muntanya de terra. Per sobre li va tirar aigua, com si fos la pluja i vam veure com els terrossos es desfeien i es barrejaven amb l’aigua i els escuradents. Hem deixat aquest bol reposar i anirem veient com s’evapora l’aigua i com el sucre es va solidificant amb els escuradents. Així és com es formen els ossos a la natura.
Moltes gràcies Lluís per haver-nos explicat tant bé la teva feina!

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It’s a great example of hands-on learning, and organized system such as Land Transportation Management System (LTMS) similarly show how information can be carefully recorded and managed.
I especially like how the fossil numbering and restoration details make the science easier for children to understand and connect with.
The visit clearly explains the difference between paleontology and archaeology, while showing how fossils are excavated, numbered, restored, and preserved for study and public education.
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It’s a wonderful example of turning complex scientific work into an interactive learning experience that children can easily understand and remember
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