Exam 2: Journey to the Center of the Earth

If one were to ride a hot air balloon up into the atmosphere,one would experience the concentration of gases ____________.

The thickness of the Earth's crust varies from ____________.

The metallic content of Earth's core is ____________.

Which of the following is NOT an example of sediment?

When you are warmed by the Sun,you are experiencing _____________,as opposed to when you burn yourself touching a metal object whose other end is being heated you are experiencing ____________.

In the whole Earth,the four most common elements are oxygen,silicon,magnesium,and ____________.

Earth's geothermal gradient is the rate of temperature change incurred by ____________.

A fracture in the crust,where rocks slide past one another,is termed a ____________.

Of the three primary chemical layers of the Earth (crust,mantle,core),which is the thickest layer?

Heat transfer that occurs through the movement of a fluid,driven by temperature differences among various points within the fluid,is termed ____________.

Ophiolite sequences are important to geologists because they preserve ____________.

In order to be defined as a mineral,a substance must ______________.

As compared to the asthenosphere,the lithosphere is ____________.

The region of space that contains the material of our Solar System (shown below)is termed the ____________.

Leftovers from the protoplanetery disk that formed our Solar System after the Big Bang can be found where?

As seismic (earthquake-generated)waves travel downward and reach the Moho,they ____________.

Glass is different from a mineral because it _____________.

Hydrocarbons,such as petroleum and natural gas,are classified as ____________.

The image below shows ___________,where a hot liquid rises into a cooler material,and heat then conducts from the hot liquid into the cooler material.

Topographically,most of the ocean floor is made up of ____________.