Evolution of the Geosphere and Geologic Time

How old are the oldest mineral grains on Earth?

• 2.8 billion years ago

• 3.5 billion years ago

• 3.8 billion years ago

• 4.4 billion years ago

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS1-6

What is the oldest mineral found on Earth?

• mica

• zircon

• basalt

• andesite

Lava flows from Earth's primitive oceanic crust was melted at 1300-1650 Celsius. What are lava flows measured at today?

• 1800 C

• 1600 C

• 1400 C

• 1200 C

Tags

NGSS.HS-ESS2-3

What is accretion in geologic terms? When...

• lava erupts

• plates stretch

• plates join together

• plates break apart

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

How does an absolute date differ from a relative date?

• relative dates are typically younger

• relative dates have number values

• Absolute dates are expressed as "younger" or "older" than something

• Absolute dates are expressed in years before present

Which division of geologic time is the longest?

• eon

• era

• period

• epoch

Tags

NGSS.MS-ESS1-4

What type of rocks is radioactive dating mostly done on?

• metamorphic

• igneous

• sedimentary

• mineral

What is half-life?

• the time it takes most of the parent atoms to decay into daughter atoms

• the time it takes half of the parent atoms to decay into daughter atoms

• the time it takes twice of the parent atoms to decay into daughter atoms

• the time it takes some of the parent atoms to decay into daughter atoms

Tags

NGSS.HS-PS1-8

During which eon did the first mineral form?

• Hadean

• Archean

• Proterozoic

• Phanerozoic

Tags

NGSS.HS-ESS1-6

What generates the magnetosphere?

• cooling of the crust

• solid metal inner core

• motion of the fluid metal outer core

• convection of the mantle

Tags

NGSS.HS-ESS2-1

NGSS.HS-ESS2-3