science quiz

The fossil record shows...

It provides evidence for the history of life on earth it shows organisms have changed over time it provides evidence to support the theory of evolution

what is carbon film

A carbon film is a type of fossil that is an extremely thin coating of carbon on rock

Whats true about both molds and casts?

Both molds and casts copy the shape of an ancient organisms. A mold forms when the hard part of an organism is buried in sediment.

Is the following sentence true or false?Fossils are usually found in igneous rock.

False

What can scientist infer when they look at fossil footprints?

Fossil footprints give clues about the animals size and behavior, whether it walked on two legs or four legs, or if it lived alone.

what is fossils in which minerals replace all or part of an organism.

Petrified fossil

The type of rock made from hardened sediment is

Sedimentary rock

Why do only hard parts of organisms generally leave fossils?

The soft parts often decay or get eaten by other animals.

Is the following sentence true or false?Most fossils form when living things die and are buried by sediments.

True

Circle the letter of each trace fossil a) footprints b)animal shells c)burrows d)animal trails

a c d

what are three ways that the remains of organisms have been preserved

amber ice tar

what is an extremely thin coating of carbon on rock

carbon film

what is a solid copy of the shape of the organism

cast

List three things that scientists learn by studying fossils

evidence of how life changed over time how earths surface gas changed what past environments were like

the gradual change in living things over long periods of time is called

evolutions

A type of organism that no longer exist and will never again live on earth is

exstinct

Is the following sentence true or false?A carbon film forms when minerals preserve the delicate parts of an organism.

false

Is the following sentence true or false?Fossils can form when the remains of organisms decay.

false

Is the following sentence true or false?It is very difficult for scientists to learn about earths past environment by studying fossils.

false

All the information that the paleontologist have discovered about the past is called the

fossil record

What is a Fossil

fossils are the preserved remains or traces of an ancient organism found in rock.

What is a scientific theory.

is a well-tested concept that explains a wide range of observations

what is A hollow area in sediment in the shape of an organism

mold

scientist who study fossils are called

paleontologists

Fossils in which minerals replace all or part of an organisms are called ______________ fossils.

petrified

what are the remains of organisms in tar,amber, or ice

preserved remains

what is evidence from the activities of ancient organisms

trace fossils

Is the following sentence true or false?Paleontologist classify organisms similarity's and when they lived.

true

Is the following sentence true or false?Petrified fossils can form when the minerals in water make a copy of the organism.

true

Is the following sentence true or false?The fossil record shows that millions of types of organisms have evolved.

true

were can coal form what enviorment

warm,swampy regions