Age of Earth

T/F: Geologist use radioactive dating to find the absolute age of rocks

• True
• False

Tags

NGSS.MS-ESS1-4

The time it takes for 50% of the nuclei in a radioactive sample to decay to its stable isotope is called ___________.

• the half life
• geologic time
• the daughter product
• the parents isotope

Tags

NGSS.HS-PS1-8

The radiometric dating of an igneous rock provides ____________.

• the relative age of the rock
• the age of Earth
• a date for when the rock formed
• a date for when the rock was eroded

Tags

NGSS.HS-ESS1-6

Geologists use radioactive dating to determine THE ABSOLUTE AGE OF ROCKS.

• True
• False

Tags

NGSS.HS-ESS1-5

Scientific law that states in horizontal sedimentary rock, the oldest layers are at the bottom

• intrusion

• fault

• index fossil

• superposition

Tags

NGSS.MS-ESS1-4

An intrusion is always ___________ than the rock layers around it and beneath it

• younger

• older

Tags

NGSS.MS-ESS1-4

Based on the Law of Superposition, what can be concluded about fossils?

• fossils give clues about past climate patterns
• Fossils form from the hard parts of organisms
• The oldest fossils are found in the lowest rock layers
• The most recent fossils were advanced organisms

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Geologist use _________ to determine the absolute age of rocks.

• absolute age dating

• relative age dating

• radiation dating

• radioactive dating

Earth elements decay and change into another element in a process called_____________.

• radiation

• isotope

• radioactive decay

• half-life

Tags

NGSS.HS-PS1-8

Which process would be most effective in determining the age of fossils embedded in rock?

• relative dating
• absolute dating
• use of index fossils
• use of core sampling

Tags

NGSS.MS-ESS1-4