Fossils Flashcard and OER: 3rd Grade TEKS Phenomenon-Based Unit

Front

Scientists would classify trilobites, which survived in oceans for over 270 million years but no longer exist today, as _________________

Back

extinct

Front

Scientists who study fossils to understand how organisms and environments on Earth have changed are called _________________.

Back

paleontologists

Front

A group of paleontologists discover several fossils that led them to believe that North Texas was once covered in a shallow sea. Which fossil below would likely provide this type of evidence?

Back

B

Front

Which letter represents the oldest layer of rock in the diagram? Options: A, B, C, D, E

Back

E

Front

Which letter represents the youngest layer of rock in the diagram? Options: A, B, C, D, E

Back

A

Front

Which type of fossils are found in the oldest layers? Options: marine (water), terrestrial (land)

Back

marine (water)

Front

Which type of fossils are found in the youngest layers? Options: marine (water), terrestrial (land)

Back

terrestrial (land)