History of Life

record of Earth's history from its origin 4.6 bye to the present

• epoch

• geologic time scale

• period

• era

Tags

NGSS.MS-ESS1-4

sudden appearance of a diverse collection of organisms in the Cambrian fossil record

• radiology

• k-t boundary

• Cambrian explosion

• radioactivity

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

second-longest time unit in the geologic time scale, measured in tens to hundreds millions of years, and defined by differences in life-forms that are preserved in rocks.

• Cambrian explosion

• era

• eon

• plate tectonics

Tags

NGSS.MS-ESS1-4

longest time unit in the geologic time scale

• half-life

• era

• eon

• epoch

Tags

NGSS.MS-ESS1-4

Scientists that use fossils to learn about/understand the history of life on Earth.

• Egyptologist

• Phrenologist

• Paleontologist

• Archeologist

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

The historical order of life that can be observed from the fossils we have collected.

• Fossilization

• Fossil Record

• Geological Calendar

• Fossil History

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

The solid remains or imprints of once living organisms.

• Imprints

• Fossils

• Molds

• Rocks

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

The calendar that scientists use to outline the history of the Earth.

• Geological Calendar

• Scientific Time

• Fossil Record

• Geologic Time Scale

Tags

NGSS.MS-ESS1-4

Which era is known for the dominance of dinosaurs?

• Paleozoic

• Mesozoic

• Cenozoic

• Proterozoic

What is the primary method used to date ancient fossils?

• Carbon dating

• Potassium-argon dating

• Uranium-lead dating

• Thermoluminescence dating