Show:
Layers
fossils
rocks
tectonics
natural selection
100

Provides evidence for the long history of the Earth and for the long history of changing life forms whose remains are found in the rocks.

What are sedimentary rock layers, or the fossil record.

100

can be used to help determine the relative age of rock layers

What are 'index fossils'

100

form when mud and sand are deposited in layers on the Earth's surface and compressed

What is 'sedimentary rock'

100

a fracture in the continuity of a rock formation caused by a shifting or dislodging of the earth’s crust, in which adjacent surfaces are displaced relative to one another.

What is 'a fault'

100
evolve in response to changes in their environment
What is 'living things'
200
layers that are more likely to contain fossils resembling existing species.
What is 'More recently deposited rock'
200
two methods by which scientists try to determine the age of geologic evidence
What is 'Absolute geologic dating and relative geologic dating'
200
formed from the solidification of molten rock material
What is 'igneous rock'
200
have caused mountains and deep ocean trenches to form and continually change the shape of Earth’s crust throughout time.
What is 'The movements of Earth’s continental and oceanic plates'
200
Organisms that were best adapted to deal with climatic, geographic and environmental changes throughout time have survived, while other organisms have become extinct
What is 'survival of the fittest' or 'natural selection'
300

Preserved remains or traces of organisms that provide important evidence of how life and environmental conditions have changed.

What is 'fossils'

300
Carbon-14 dating
What is 'an example of absolute dating'
300
have "morphed" into another kind of rock. These rocks were once igneous or sedimentary rocks
What is 'metamorphic rock'
300

When two plates push together, one crust subducting under the other or rising together to form mountains. 

What is a convergent crust boundary?

300

accounts for the diversity of species developed through gradual processes over many generations.

Or

"Descent with modification"

What is 'biological evolution'

400
Earth’s history is influenced by occasional catastrophes such as
What is 'the impact of an asteroid or comet'
400
an example of relative dating
What is ' the law of superposition'
400

molten magma pushes up into solid crust, melting and replacing the crust with igneous rock.

What is 'an intrusion'?

400

Shifting of plates, folding, spreading, or tilting as well as erosion and weathering events all lead to the creating of gaps or the destruction of the layers of deposited rock. This negates the Law of Superposition.

What is an "unconformity?"

400
changes in structures, behaviors, or physiology that enhance survival and reproductive success in a particular environment
What is 'biological adaptation'
500
The youngest layers are not always found on top because
What is 'because folding, breaking, and uplift of layers'
500
4-5 billion years old
What is 'based on the radioactive decay of uranium, scientists have discovered that the age of the Earth is'
500

Rocks, fossils, and ice cores show us about the history of the Earth

What proves '1. Life forms have changed over time and 2. Earth’s climate and surface have changed over time'

500

This theory is strongly linked to the movements of the lithospheric plates and the resulting change in environment.

What is 'The evolution of Earth’s living things'

500
occurs when the environment changes and the adaptive characteristics of a species are insufficient to allow its survival.
What is 'extinction'