1. Square, checkerboard or quilt pattern usually indicate agriculture (different greens equal different types of crops) Rivers, streams, and bayous appear as wavy lines (irregular, wavy=nature). If image has color, water is usually but not always colored blue or dark grey. Light grey = populations, development, urbanization (straight lines = infrastructure, man made) Brown, light tan is usually an indication of soil exposure (as in clearing for development, planting or natural settings such as deserts and beaches) Darker shades typically indicate thicker vegetation or deeper water Lighter shades typically indicate sparse vegetation or more shallow water (may also show soil erosion in water) “Reading” GIS Imagery Houston, Texas

2. Drag labels to show the corresponding feature on the GIS image Bush Intercontinental Airport Galveston Bay Sam Houston Toll way/Beltway Bear Creek Park and Flood Plain

3. http://www.wpmap.org/physical-map-of-africa/ Drag labels to show the corresponding feature on the GIS image Sahara desert Mt. Kilimanjaro volcano Lake Victoria water Great Rift Valley elevation change Congo Basin vegetation Nile River water

4. GIS images are often shaded to show details. In the image to the right, green vegetation is colored red. The Greater Houston Metropolitan area is seen, with urban areas blue- grey and suburban areas white-pink. Houston city is at centre. Bush International airport is at top centre visible with white runways. North Free- way is the white motorway running from the city north. At top right is Lake Houston with its dam wall; the navigable Buffalo Bayou runs from the city to the north tip of Galveston Bay (at right). 2ols.com Summer Winter Warning: Color in GIS changes Shading (dark to light) is more consistent

5. Can you match the label to the correct image? Nile River Mediterranean Sea Hawaii California Great Salt Lake Andes Mountains Rocky Mountains Volcano Sahara ItalySpain