Intro to Geological Time Scale

A scientist who studies the Earth's crust as well as the processes and history that shaped it.

• Paleontologist

• Geneticist

• Geologist

• Geographer

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

A branch of geology dealing with the arrangement of sedimentary rock layers (or strata).

• Geography

• Geology

• Catastrophy

• Stratigraphy

Tags

NGSS.MS-ESS1-4

The age of rocks and geologic features compared with other rocks and features nearby.

• Absolute Age

• Estimated Age

• Relative Age

• Chronological Age

Tags

NGSS.MS-ESS1-4

Easily recognizable, abundant, wide geographic distribution, and a short life span are all characteristics of what?

• Index Fossils

• Rock Strata

• Radioactive Decay

• Law of Superposition

A scientist who studies fossil remains found on Earth's surface in order to study primitive life forms such as: plants, animals, fungi, and bacteria.

• Geologist

• Geographer

• Paleontologist

• Biologist

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

The history of life as documented by all fossils, preserve in sedimentary rock strata.

• Index Fossils

• Fossil Record

• Life Record

• Geological Time Scale

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Geologists assume the newest rock layers are on top of the older rock layers, unless some type of disturbance occurs.

• Geologic Time Scale

• Law of Superposition

• Relative Age

• Absolute Age

Tags

NGSS.MS-ESS1-4

The numerial age, in years, of a rock or object.

• Geologic Time Scale

• Absolute Age

• Relative Age

• Index Fossils

The process by which an unstable object element naturally changes into another element that is stable.

• Law of Superposition

• Absolute Age

• Radioactive Decay

• Rock Strata

Tags

NGSS.HS-PS1-8

Scientists measure the ratio of C-14 left in an organism to determine how much time has passed since the organism died.

• Radioactive Decay

• Half Life

• Absolute Age

• Radiocarbon Dating