Earth & Space Science - Unit 5

What force is cited as the driving force that moves the ocean plates?

Magma that turns into rock at the mid ocean ridge, has iron crystals that record

Carbon dating and other forms of radiometric dating are examples of

Which type of boundary forms mid-ocean ridges?

Alfred Wegener showed that the sea floor was spreading and moving the continents.

What type of boundary is it when an ocean plate meets a continental plate?

What is the name of the supercontinent when all the continents were connected?

The number of years something has actually existed is its

Which physical layer of the Earth is broken up into the tectonic plates?

How did we determine that the outer core is liquid?

Which type of crust is recycled into the mantle?

Which one of the following is not an evidence for sea floor spreading?

Which layer of the Earth is made up of molten rock that moves very slowly?

Which one of the following is not evidence for a one time supercontinent?

Apparently, the Earth's magnetic poles have reversed in the past.

Why is oceanic crust denser than continental?

Which is NOT a piece of evidence used to determine the layers of the Earth?

If a fossil has 25% of its parent material remaining, and its half life is 200 years, it is

Which scientist proposed that the ocean floor was expanding around mid ocean ridges?

How did the Mariana Trench form?

What is it called when oceanic crust goes down into the mantle under the continental crust?