Earth's Age

Rock layers are not the same everywhere. Different areas contain different parts of Earth’s geologic history. Which of the following could provide the best evidence for a scientist to figure out if rock layers from different areas are the same relative age?

• unconformities

• faults

• fossils

• ripple marks

Tags

NGSS.HS-ESS1-5

Geologist use the time it takes for a radioactive isotope to decay to half its original mass called a___________.

• radioactive decay

• isotope

• half-life

• carbon dating

Tags

NGSS.HS-PS1-8

According to the law of superposition, the oldest fossils are found 

• At the top of the rock layers

• Near the bottom of the rock layers

• In the middle of the rock layers

• Somewhat near the surface

Tags

NGSS.HS-ESS1-5

Which Layer is the oldest?

• Layer L

• Layer G

• Layer A

• Layer K

Tags

NGSS.MS-ESS1-4

Fossil A was determined to be older than fossil B. What type of dating was most likely used?

• Relative Dating

• Absolute Dating

Earth is about how old?

• 4.6 billion years old

• 4.6 million years old

• 4,600,000,000 seconds

• 1.6 lightyears

Tags

NGSS.HS-ESS1-6

The age of an index fossils can help establish?

• the ages of rocks and other fossils

• the ages of the animals in nature

• the ages of our ancestors if they still lived today

• none of the above

Tags

NGSS.HS-ESS1-5

_ and _ are used together to provide a more complete understanding of Earth's history

What is the estimated age of the Earth according to scientific consensus?

• 4.6 billion years

• 3.5 billion years

• 2.5 billion years

• 1.5 billion years

Tags

NGSS.HS-ESS1-6

Which method is primarily used to determine the age of the Earth?

• Carbon dating

• Radiometric dating

• Dendrochronology

• Thermoluminescence

Tags

NGSS.HS-ESS1-6