Question 1

The age of a rock given as the number of years since the rock formed.

Accepted Answer

absolute age

Answer

radioactive dating

Answer

unconformity

Answer

relative age

Question 2

the gradual movement of the continents across the Earth's surface through geological time.

Accepted Answer

continental drift

Answer

geologic time scale

Answer

unconformity

Answer

fault

Question 3

a crack in the earth's crust resulting from the displacement of one side with respect to the other

Accepted Answer

fault

Answer

ice core

Answer

fossil

Answer

continental drift

Question 4

The preserved remains or traces of an organism that lived in the past

Accepted Answer

fossil

Answer

fault

Answer

ice core

Answer

unconformity

Question 5

A record of the geologic events and life forms in Earth's history.

Accepted Answer

geologic time scale

Answer

radioactive dating

Answer

continental drift

Answer

plate tectonics

Question 6

length of time required for half of the radioactive atoms in a sample to decay

Accepted Answer

half-life

Answer

absolute age

Answer

relative age

Answer

index fossil

Question 7

cylinders of ice drilled out from glaciers and polar ice sheets that provide data about the composition of Earth's atmosphere throughout time.

Accepted Answer

ice cores

Answer

fossil

Answer

unconformity

Answer

fault

Question 8

a type of rock that forms from the cooling of molten rock at or below the surface

Accepted Answer

igneous rock

Answer

metamorphic rock

Answer

sandstone

Answer

sedimentary rock

Question 9

fossils of widely distributed organisms that lived during only one short period of time and can be used to date specific rock layers

Accepted Answer

index fossil

Answer

radioactive dating

Answer

unconformity

Answer

ice core

Question 10

The geologic principle that states that in horizontal layers of sedimentary rock, each layer is older than the layer above it and younger than the layer below it.

Accepted Answer

Law of Superposition

Answer

Unconformity

Answer

Law of Motion

Answer

sedimentary rock

Question 11

A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions.

Accepted Answer

metamorphic rock

Answer

sedimentary rock

Answer

basalt rock

Answer

igneous rock

Question 12

A technique used to determine the actual age of a fossil on the basis of the amount of a radioactive element it contains

Accepted Answer

radioactive dating

Answer

index fossil

Answer

ice core

Answer

absolute age

Question 13

The age of a rock or rock layer compared to the ages of other rock layers around it

Accepted Answer

relative age

Answer

absolute age

Answer

Law of Superposition

Answer

index fossil

Question 14

A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together

Accepted Answer

sedimentary rock

Answer

igneous rock

Answer

metamorphic rock

Answer

basalt rock

Question 15

A place where an old, eroded rock surface is in contact with a newer rock layer.

Accepted Answer

unconformity

Answer

sedimentary rock

Answer

fossil

Answer

fault

Question 16

unconformity

Accepted Answer

A place where an old, eroded rock surface is in contact with a newer rock layer.

Answer

fossils of widely distributed organisms that lived during only one short period of time and can be used to date specific rock layers

Answer

A record of the geologic events and life forms in Earth's history.

Answer

The age of a rock given as the number of years since the rock formed.

Question 17

sedimentary rock

Accepted Answer

Rock that has formed through the deposition and solidification of sediment, especially sediment transported by water (rivers, lakes, and oceans), ice (glaciers), and wind.

Answer

A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions.

Answer

The geologic principle that states that in horizontal layers of sedimentary rock, each layer is older than the layer above it and younger than the layer below it.

Answer

a type of rock that forms from the cooling of molten rock at or below the surface

Question 18

relative age

Accepted Answer

The approximate age determination of rocks, fossils or minerals made by comparing whether the material is younger or older than other surrounding material.

Answer

The age of a rock given as the number of years since the rock formed.

Answer

cylinders of ice drilled out from glaciers and polar ice sheets that provide data about the composition of Earth's atmosphere throughout time.

Answer

The geologic principle that states that in horizontal layers of sedimentary rock, each layer is older than the layer above it and younger than the layer below it.

Question 19

radioactive dating

Accepted Answer

a method of dating rocks and minerals using radioactive isotopes.

Answer

The age of a rock given as the number of years since the rock formed.

Answer

The age of a rock or rock layer compared to the ages of other rock layers around it

Answer

length of time required for half of the radioactive atoms in a sample to decay

Question 20

metamorphic rock

Accepted Answer

started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form.

Answer

A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together

Answer

cylinders of ice drilled out from glaciers and polar ice sheets that provide data about the composition of Earth's atmosphere throughout time.

Answer

a type of rock that forms from the cooling of molten rock at or below the surface

Question 21

Law of Superposition

Accepted Answer

Layers of rock are superimposed, or laid down one on top of another. The oldest rock strata will be on the bottom and the youngest at the top.

Answer

The age of a rock given as the number of years since the rock formed.

Answer

A record of the geologic events and life forms in Earth's history.

Answer

A technique used to determine the actual age of a fossil on the basis of the amount of a radioactive element it contains

Question 22

index fossils

Accepted Answer

a fossil that is useful for dating and correlating the strata in which it is found.

Answer

cylinders of ice drilled out from glaciers and polar ice sheets that provide data about the composition of Earth's atmosphere throughout time.

Answer

The age of a rock or rock layer compared to the ages of other rock layers around it

Answer

The age of a rock given as the number of years since the rock formed.

Question 23

igneous rock

Accepted Answer

Rocks formed by the cooling and solidifying of molten materials. Can form beneath the Earth's surface (magma), or at its surface (lava).

Answer

A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together

Answer

A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions.

Answer

the gradual movement of the continents across the Earth's surface through geological time.

Question 24

ice cores

Accepted Answer

long cylinder of ice recovered by drilling through glaciers in Greenland, Antarctica, and high mountains around the world.

Answer

A place where an old, eroded rock surface is in contact with a newer rock layer.

Answer

fossils of widely distributed organisms that lived during only one short period of time and can be used to date specific rock layers

Answer

a crack in the earth's crust resulting from the displacement of one side with respect to the other

Question 25

half-life

Accepted Answer

the time taken for the radioactivity of a specified isotope to fall to half its original value.

Answer

A place where an old, eroded rock surface is in contact with a newer rock layer.

Answer

A technique used to determine the actual age of a fossil on the basis of the amount of a radioactive element it contains

Answer

The age of a rock or rock layer compared to the ages of other rock layers around it

Question 26

geologic time scale

Accepted Answer

a representation of time based on the rock record of Earth

Answer

The geologic principle that states that in horizontal layers of sedimentary rock, each layer is older than the layer above it and younger than the layer below it.

Answer

Layers of rock are superimposed, or laid down one on top of another. The oldest rock strata will be on the bottom and the youngest at the top.

Answer

A place where an old, eroded rock surface is in contact with a newer rock layer.

Question 27

fossil

Accepted Answer

the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.

Answer

A place where an old, eroded rock surface is in contact with a newer rock layer.

Answer

a crack in the earth's crust resulting from the displacement of one side with respect to the other

Answer

A technique used to determine the actual age of a fossil on the basis of the amount of a radioactive element it contains

Question 28

fault

Accepted Answer

a fracture or zone of fractures between two blocks of rock.

Answer

A technique used to determine the actual age of a fossil on the basis of the amount of a radioactive element it contains

Answer

A place where an old, eroded rock surface is in contact with a newer rock layer.

Answer

the gradual movement of the continents across the Earth's surface through geological time.

Question 29

Continental Drift

Accepted Answer

the gradual movement of the continents across the earth's surface through geological time

Answer

The age of a rock or rock layer compared to the ages of other rock layers around it

Answer

fossils of widely distributed organisms that lived during only one short period of time and can be used to date specific rock layers

Answer

a crack in the earth's crust resulting from the displacement of one side with respect to the other

Question 30

absolute age

Accepted Answer

the actual age found by using analyzing its physical properties

Answer

A technique used to determine the actual age of a fossil on the basis of the amount of a radioactive element it contains

Answer

The age of a rock or rock layer compared to the ages of other rock layers around it

Answer

length of time required for half of the radioactive atoms in a sample to decay

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