Geologic Time

Dinosaurs ruled in what era?

• Paleozoic Era

• Mesozoic Era

• Precambrian Time

• Cenozoic

Saying you are older than a baby is an example of what?

• Absolute Age

• Relative Age

• The Law of Superposition

• Principle of Original Horizontality

We live in the Cenozoic Era

• True

• False

Tags

NGSS.MS-ESS1-4

Which piece of evidence do scientists use to determine the age of the Earth?

• Earth Strata

• Index Fossils

• All of the Above

• Radioactive Dating

Tags

NGSS.MS-ESS1-4

What is it called when an entire species dies out?

• Absolute Age

• Extinction

• Relative Age

• Mass Extinction

Tags

NGSS.MS-LS4-1

If the same index fossils are found in different rock strata far apart, which is true?

• They are index fossils

• The fossils are from different organisms

• The rock strata are from the same relative time periods

• The rock strata occurred at different periods

Tags

NGSS.MS-ESS1-4

Absolute dating uses half-life isotopes to get the exact age of a rock or mineral

• true

• false

Which explains why layers of the Earth may be altered or changed

• Principle of Cross- Cutting Relationships

• The Law of Superposition

• The Law of Gravity and the Law of Motion

• Radioactive Isotopes

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

Which are characteristics of Index fossils

• small and round

• long lifespan, lead isotopes

• 10 feet under the ground from animals, but not plants

• recognizable, short lifespans, wide distribution

Absolute Dating is also known as

• precise dating

• relative dating

• Radiometric and Radioactive dating

• rock layer exact dating