Module 10 - Fossils Question Preview (ID: 53672)


Fossils. TEACHERS: click here for quick copy question ID numbers.

How did this fossil form?


a) The bone was pressed between layers of soft mud or clay that hardened, squeezing almost all the decaying bone away and leavin
b) minerals soaked into the buried remains of a piece of bone, replacing the remains, and changing it into a rock.
c) sediments buried a piece of bone and the sediments changed into a rock; the bone decayed leaving a cavity in the shape of th
d) a mold of a piece of bone was filled with sand or mud that hardened into the shape of the bone

What kind of fossil is this?


a) trace
b) cast
c) mold
d) preserved

Natural casts form when flowing water removes all of the original bone or tissue, leaving just an impression in sediment. Minerals fill in the __________, recreating the original shape of the organism very common for marine organisms with shells.
a) mold
b) cast
c) permineralized
d) trace

Which type of fossils can tell you about the movements and behaviors of organisms?
a) trace
b) cast
c) permineralized
d) preserved

This is the most common type of fossil people think of when they think about a fossil and this process typically preserves teeth, bones, shells, and wood.
a) permineralized
b) preserved
c) trace
d) mold

Fossils can be divided into two categories, fossilized body parts (bones, claws, teeth, skin, embryos, etc.) and fossilized __________, (which are footprints, nests, dung, tooth marks, etc.), all of which provide valuable clues about Earth’s past.
a) traces
b) organisms
c) body parts
d) all of the answer choices

Preserved remains can only become fossils if they reach an age of about __________ years.
a) 10,000
b) 100,000
c) 1,000
d) 100,000,000

Bones, shells, feathers, and leaves are just some of the things that can become __________.
a) fossils
b) organisms
c) traces
d) all of the answer choices

Because of the conditions necessary for their preservation, not all types of organisms that existed in the past have left fossils that can be __________.
a) retrieved
b) useful
c) helpful
d) fossils

Fossils are any remains or __________ of past organisms that have been preserved by nature.
a) traces
b) parts
c) teeth
d) bones

In order for a fossil to form, the organism's remains must not be significantly disturbed by a scavenger, rotted away by decomposers like bacteria, or destroyed by natural forces such as weathering which are all very __________.
a) common
b) rare
c) unnatural
d) unlikely

Which of the following is a factor that limits fossilization?
a) all of the answer choices
b) the presence of scavengers or decomposers that consume the remains.
c) lack of hard body tissues that make up the organism.
d) natural forces including plate tectonics, and weathering that break down the remains.

Which of the following environmental conditions would favor fossil formation?
a) Quick and deep burial in marine environments
b) Quick exposure to weathering and erosion
c) Quick exposure to scavengers and decomposers
d) Quick and shallow burial in tropical environments

Which will LEAST likely form a fossil?
a) octopus
b) shark teeth
c) shell
d) trilobite

Which of the following BEST explains why most living things do not become fossils?
a) most organisms decompose before they ever become fossils
b) fossils can only be created over short periods of time
c) most organisms are hunted by predators before they become fossils
d) fossils are rarely formed because they are buried too quickly and deeply

How was this dinosaur fossil most likely fossilized?


a) The dinosaur was buried quickly in sediment and its bones were replaced with dissolved minerals.
b) The bones of the dinosaur were hardened into rock over time under extreme pressure.
c) The bones of the dinosaur likely dried out in the Sun and turned to stone
d) The water likely dried up quickly and the salt helped preserve the bones of the dinosaur.

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