Physical Science:
-ChromaDepth
-Electricity
-Making Paint
-Bubble Prints
-Speed Fizz
-Bridge Building
-Magnets
-Forcing Gravity
-Gears & Gizmos
-Simple Machines
-Solar Energy
-Sound
-Switch On
-Dying for a Tan

• This map stretches from the Tijuana River valley in the south to Mount Palomar in the north.
• Point Loma is clearly visible. The fact that the coastal land north of that is nearly the same color as the ocean shows how flat and how close to sea level it is.
• The bottom of the ocean (the bathymmetry) would show deep canyons and fault scarps offshore from San Diego. Offshore faults are much more impressive than anything on shore is.
• Because the water covers the major earthquake-produced valleys offshore, we have a false sense of security from seeing major earthquake faults way over on the eastern side of the county. The nearest big fault is actually just offshore from San Diego.
• San Diego County is gently tilted to the west, so that the eastern edge of the county forms high mountains.
• The sharp contrast at the eastern edge of the county between red and yellow shows steep topography of the “Eastern Escarpment”, which is the eastern edge of the solid tilted beam.
• The obvious straight-line character of the Northwest-to-Southeast pattern in the northeastern part of the county is produced by several major and active strike slip faults. Many past earthquakes have produced these linear mountains, which might be where the next big earthquakes on land will occur.
• The major valleys and ridges throughout the county show that the rocks that make up the county are solid and strong, unlike the rocks of the Los Angeles basin or San Francisco bay area.
• The ancient Poway fan is the source of the round maroon rocks in much of San Diego County. These rocks came from Sonora, Mexico, down an ancient river. Obviously, this river could not have flowed up and over the Eastern Escarpment. Instead, the rocks were transported by the San Andreas system that disrupted the old river channel and moved the rocks

• The Hawaiian Islands
• San Diego County
• Colorado
• Appalachian Mountains