Time

Which Era occurred last (most recent)?

• Cenozoic

• Mesozoic

• Paleozoic

Which period is closest to present day?

• Cambrian

• Devonian

• Triassic

• Tertiary

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

What is the oldest organism on the geologic time scale?

• primitive horses

• sea scorpions

• giant insects

• trilobites

Tags

NGSS.MS-ESS1-4

a model scientists use to describe the timing of events and the relationships between those events in earth’s history.

• geologic time scale

• era

• period

• epoch

Tags

NGSS.MS-ESS1-4

Which Era has the most complex organisms?

• Cenozoic

• Mesozoic

• Paleozoic

• Quaternary

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What does this timeline suggest about Earth?

• It suggests that Earth has changed over time since human fossils became present in the Sahara after 9,000 years, indicating that the environment had been suitable enough to support human life at one time.

• It suggests that Earth has not changed much over time since human fossils were present as early as 9,000 years ago, indicating that Earth's environment has almost always been suitable for the presence of life.

• It suggests that Earth's deserts always receive monsoon rains every 1,000 years.

• It suggests that Earth is only able to preserve fossils in environments that are desert like.

Tags

NGSS.MS-ESS2-2

NGSS.MS-LS2-4

NGSS.MS-LS4-1

Which layer is most likely the oldest in location 1?

• layer Q

• layer R

• layer S

• layer T

Tags

NGSS.MS-ESS1-4

What is the primary unit of time in the International System of Units (SI)?

• Second

• Minute

• Hour

• Day

Which scientist is known for the theory of relativity, which fundamentally changed our understanding of time and space?

• Isaac Newton

• Albert Einstein

• Galileo Galilei

• Niels Bohr

In physics, what is the term for the time it takes for half of a radioactive substance to decay?

• Half-life

• Decay constant

• Radioactive period

• Decay time

Tags

NGSS.HS-PS1-8