What is remote sensing? Spacecraft, like Terra, view the Earth

>    How does stereo imaging work?

>    What are optical scanners, and what are they used for?

>    What do night-time optical scanners scan?

>    How does radar work?

>    What is spaceborne altimetry used for?

>    What other methods of radar technology are used to study the geosphere?

>    What is the Global Positioning System?

>    How is the Earth modelled for mapping?

>    How is remote sensing used to study the Earth's interior?

What is plate tectonics, and how does it work? Characteristics of plate tectonics

>    Where could the Earth's plates have been in the past?

>    Where could the Earth's plates be in the future?

>    What happens when plates slide past each other?

What are the features of the Earth's magnetic field? Geomagnetism

>    What is the importance of the Earth's dynamic magnetic field?

How can we study the earth? Remote sensing helps us study "Island Earth"

What are map projections? Portraying the features of a spherical surface on a flat plane

>    What is the Geographic Coordinate System?

>    What is the Mercator Projection?

>    What is the Orthographic Projection?

>    What is the Hammer-Aitoff Projection?

What is the "Ring of Fire"? Plate tectonics around the Pacific Ocean

What are minerals? Characteristics of minerals and gems

>    What effect does ultraviolet light have on some minerals?

>    Where are minerals produced?

>    Where are the metal reserves?

What are rocks? Rocks and classifications

>    What are igneous rocks?

>    What are sedimentary rocks?

>    What are metamorphic rocks?

>    What is the rock cycle?