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Fossils
Fossil Formation
Fossil Age
Extinctions
bonus
100

The preserved remains or evidence of organisms that were once alive.

What is a fossil?

100
Most fossils are formed of these parts of an organism.
What is the hard parts; the bone, shells, teeth.
100
Because scientists cannot date most fossils directly, they usually find the age of what?
What is the rocks around the fossils.
100

What is when the last individual organism of a species dies.

What is an extinction?

100
Give an example of a sudden change in the environment.
What is a meteorite impact.
200

This kind of fossil forms as an impression in a rock...

What is a mold fossil.

200
This type of fossil formation is when the remains of an organism get buried in sediments under a body of water, and the molecules that formed the remains get replaced by minerals.
What is mineralization.
200
Scientists determine the relative order in which rock layers were deposited in this type of fossil dating.
What is relative-age dating.
200

What is when many species die off within a few million years or less.

What is mass extinction?

200

The change over time in populations of related organisms.

What is biological evolution?

300

The type of fossil that provides evidence of an organisms activity or behavior?

What is a trace fossil?

300
When a dead organism is compressed over time and pressure drives off the organism's liquids and gases, there is a fossil formed through this process.
What is carbonization.
300
What is more accurate, relative-age dating or absolute-age dating?
What is absolute-age dating.
300
How many mass extinctions does the fossil record of the Phanerozoic eon show evidence of?
What is five.
400

When an impression or mold is filled with sediments that harden to rock.

What is a cast fossil?

400
Molds and casts only show this part of an organism.
What is the external parts.
400

What makes absolute-age dating more precise than relative-age dating?

What is radioactive dating

400
What causes extinctions?
What is the changes in the environment.
400

Name 4 physical animal adaptations.

What are the shape of a bird’s beak, patterns and camouflage, whiskers on a cat and sharp claws?

500

What is all the fossils ever discovered on Earth.

What is the fossil record?

500
What type of fossil would result from this scenario? A prehistoric beetle falls into a pool of mud. The mud hardens around the beetle's body, which decays away.
What is a mold fossil.
500

The older layers of rock are below the younger layers of rocks.

What is the law of superposition

500

Give an example of a gradual environmental change.

What is the formation of mountains.