# data[].attributes.attachment_link.description
TOUCH this image to discover its story. Image tagging powered by ThingLink

# data[].attributes.body
List the three types of plate boundaries and explain the movement and landforms associated with each type.

1. Divergent. Splits the plates apart. creates rift valleys on land and mid ocean ridges.

2. Convergent. When two plates collide head on. In the ocean they create subduction zones and volcanoes; on land they make mountain ranges.

3. Transform. When two plates slide past each other.

# data[].attributes.attachment_link.description
The Earth is approximately 4,000 miles from the center to its surface, but what makes up those miles of earth? Let's take a journey inside. License: Creative Commons BY-NC-SA More information at http://k12videos.mit.edu/terms-conditions

# data[].attributes.body
It is hard to determine Earth's inner structure, because we can not dig through the crust. oceanic crust is mainly made of basalt.

Seismec waves are used to provide evidence about Earth's interior by showing where a earthquake can be felt.

Earth's three main layers are the crust, mantle, and core.

The lithosphere is part of the crust, and the asthenosphere is part of the mantle.

Solid layers include: the lithosphere, the inner core, and the lower mantle. Solid but able to flow slowly layers include: the asthenosphere and the the outer core.

# data[].attributes.body
There are three types of heat transfer: radiation, conduction, and convection. Radiation is the transfer of heat through space. Conduction is the transfer of heat through materials touching. Convection is the transfer of heat through liquids. Convection current is the flow that transfers heat within a liquid. Convection currents occur in the mantle of the Earth, and moves plates and causes continental drift. Other things contribute to continental drift, but convection currents are the biggest factor.

# data[].attributes.attachment_link.title
Plates moving due to convection in mantle | Cosmology & Astronomy | Khan Academy

# data[].attributes.body
This shows the movement of the continents.

# data[].attributes.headline
What Evidence Supports Wegener's Theory?

# data[].attributes.subject
What Evidence Supports Wegener's Theory?

# data[].attributes.body
First of all, Wegener's theory was that all of the present continents were once a huge super contintent called Pangaea. Pangea was made of Africa, South America, North America, Eurasia, Australia, India, and Antartica. He got the idea of it when he saw that that South America and Africa fit together perfectly. This is strong evidence. Another piece of evidence is the fossils, or any trace of an ancient organism that has been preserved in rock, of the same types of life on different continents. The animals could not have traveled over vast oceans that presently exist. This had to have happened from animals spreading all over a supercontinent. This lead to the possibility of a land bridge. Wegener believed that Pangaea was originally near the south pole; the centrifugal force of Earth caused the supercontinent to break apart. Then the continents drift towards the equator creating the current landscape of the earth.

# data[].attributes.body
Bill Nye The Science Guy on Plate Tectonics and the Earth's Crust! "

# data[].attributes.attachment_link.description
I DO NOT OWN ANY OF THE VIDEO'S CONTENTS COPYRIGHTED. THE FOLLOWING VIDEOS ARE FOR ENTERTAINMENT PURPOSES. ********************************************************************* A fun way to learn Science with hilarious scientist Bill Nye. Enjoy!