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Flashcards in Fossils Deck (13)
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1
Q

Preserved remains or traces of once-living organisms, usually buried by sediment

A

Fossils

2
Q

Types of fossils?

A

Cast, molds, carbon film, trace fossils, petrified fossils, preserved fossils

3
Q

Takes the same shape of the plant or animal. The space is sometimes filled with mud. The mud hardens and turns into rock. Cast are often made from a mold.

A

Cast

4
Q

Looks like the shape of living thing carved into a rock. The inside of the sedimentary rock is a hollow space that takes the shape od the one living thing

A

Mold

5
Q

Plant imprints or animal footprints harden and become fossils

A

Trace Fossils

6
Q

Scientists that study once living things that no longer exist

A

Paleontologists

7
Q

minerals build up and replace all or part of an organism

A

Petrified fossils

8
Q

thin coating of carbon on a rock; gases escape from the sediment leaving behind carbon; shows delicate parts (leaves; insects)

A

Carbon film

9
Q

Remains of an organism in tar, amber, or ice

A

Preserved remains

10
Q

when an organism no longer exists and never will again

A

extinct

11
Q

well-tested concept that explains a wide range of observations

A

scienntific theory

12
Q

gradual change in living things over long periods of time

A

evolution

13
Q

information gathered by paleontologist

A

fossil record