I-Abad Santos

Week 7 Plate Tectonics Click on the link below to hear a mini-le...

Each cell, under a specific grade level contains 3 lesson plans and student worksheets per week. Multimedi...

Continental Drift (source: USGS at http://pubs.usgs.gov/publications/text/historical.html) In geologic terms, a plate is a large, rigid ...

Lithosphere The outer, rigid shell of the earth. It is composed of the entire crust and uppermost part of the mantle. The thickness of the ...

The Ionosphere This absorption of radiation is also responsible for the Ionosphere. Located within the thermosphere, the ionosphere is mad...

Thermosphere From Wikipedia, the free encyclopedia Jump to: navigation , search The thermosphere is the ...

Thermosphere The structure of the Earth's atmosphere: Thermosphere Thermosphere The thermosphere is located above the mes...