Earth Science

____________________ is used to determine the absolute age of a rock?

According to the image, which layer is the youngest?

Crust near ocean ridges is _____(compared to ocean crust near deep-sea trenches)

Which of the Hawaiian islands is the youngest?

What does this image represent?

What does the image represent?

The oldest rock layer in an undisturbed rock sequence occurs ___

The ___ of ocean floor rocks on one side of an ocean ridge is a mirror image of the other side

Hot spot volcanoes are associated with which boundary?

The _____ can be used to determine the relative age of rock layers.

Crust is neither destroyed nor formed along which boundary?

Alfred Wegener did NOT use this type of evidence because it was not yet available to him

Radioactive decay occurs at a ________ ______ to make it useful in determining the absolute age

What is Alfred Wegener's theory?

The existence of coal beds in Antarctica indicates that the continent once was _____

How old is the earth?

The sandstone layer is younger than the igneous rock layer.  This statement is an example of...

What is the top layer of the Earth called?

Continental-continental plate collisions produce 

Features found at divergent boundaries include

What is the half-life of the element in the graph shown?

The amount of time it takes for one-half of the original amount of an isotope to decay is ___

Deep sea trenches and volcanoes are a result of ______.

Which layer is the oldest in the cross-cut section?

What force drives the movement of crustal tectonic plates?

You can tell that a fault is younger than the rock it cuts across by applying the principle of 

Earthquakes are most likely to occur at

The image shown represents  a highly folded __ where two continents are running into each other

The further the island is from the hot spot, the 

Pattern of rock at the bottom of rock formations at the bottom of the ocean show the crust is