Early 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-ESS1-5

Scientist think the Earth is ___ years old.

• 4,500
• 45,000
• 4.5 million
• 4.5 billion

Tags

NGSS.MS-ESS1-4

Some ELEMENTS can decay over time.

• True
• False

Which layers are older than rock layer 2?

• Only layer 1

• Only layer 4

• Both layers 1 and 3

• Both layers 3 and 4

Tags

NGSS.MS-ESS1-4

Why is the principle of superposition important to geologists who are trying to understand the evolution of Earth over time?

• A. It describes the evolution of rocks as they go through the rock cycle.

• B. It indicates the relative ages of rock layers and the fossils in them.

• C. It describes the evolution sequence as rocks are laid down side by side.

• D. It states that the composition of rock remains the same throughout the different geological periods.

Tags

NGSS.MS-ESS1-4

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.MS-ESS1-4

  A _____________________ is the remains or evidence of an   ancient organism.

• paleontologist 
•  fossil
• preserved
• extinct

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

When something is _____________________ it no longer exists.

• paleontologist 
•  fossil
• preserved
• extinct

Tags

NGSS.MS-LS4-1