Theem 1: Ib tug dinosaur tuag thiab faus ua ntej cov seem yuav raug puas tsuaj tag. Kauj Ruam 2: Thaum lub sij hawm dhau mus, txheej ntawm cov av khib nyiab tsim thiab nias rau ntawm qhov faus seem. Theem 3: Dissolved minerals, thauj los ntawm av-dej nyob rau hauv cov sediment, sau me me qhov chaw nyob rau hauv cov pob txha.
fossils tsim 6 kauj ruam li cas?
Cov ntsiab lus hauv cov teeb no (6)
- tuag. Kev tuag yuav tsum tshwm sim yog tias tus txheej txheem pib.
- decomposition. Cov nqaij mos decomposes, yog tias tsis noj los ntawm scavengers, tsuas yog cov pob txha tom qab. …
- kev thauj mus los. …
- huab cua thiab faus. …
- fossilization. …
- erosion thiab discovery.
Koj ua li cas pob txha hauv 5 kauj ruam yooj yim?
Ntawm no yog tsib txoj hauv kev yooj yim uas yuav ua rau koj cov pob txha tuaj yeem muaj ib hnub pom lub tsev nyob ib sab ntawm lub velociraptor
- Kauj Ruam Ib: Ua Neeg. Nrog koj zoo siab! …
- Kauj Ruam Ob: Tau faus. …
- Kauj Ruam Peb: Xaiv lub phiaj xwm zoo. …
- Kauj Ruam Plaub: Hloov Cov Khaub Ncaws rau Crystals. …
- Kauj Ruam 5: Ua Tau Zoo Kawg Nkaus.
Cov fossils tsim rau menyuam yaus li cas?
Lawv feem ntau tsim los ntawm qhov nyuaj-xws li cov plhaub lossis pob txha-ntawm cov khoom muaj sia. Tom qab ib tug ciaj sia tuag, nws ntog mus rau hauv qab ntawm lub hiav txwv. Cov txheej ntawm lub ntiaj teb thiab cov seem ntawm lwm yam muaj sia nyob rau saum nws. Sij hawm dhau mus, cov txheej no hloov mus ua pob zeb.
4 hom yog dab tsipob txha?
Plaub Hom Fossils Sort Packet
Ib yam haujlwm uas siv plaub hom pob txha (pwm, nrum, kab, thiab daim ntawv tseeb).
