1. Images of Earths Surface
Essential Question: How do we view large areas of Earth’s surface? Objective: You will be able to analyze images of Earth’s surface to identify land features.

2. Artificial Satellites
Human-built machines that orbit the Earth and perform a specific task by receiving and transmitting signals by electromagnetic waves.

3. Electromagnetic Waves

4. How High do Satellites Fly

6. Satellite Images Images of the Earth’s surface from space via satellites orbiting the Earth.

7. Types of Artificial Satellites
Scientific Research – used to map sea surface temperatures
Weather – provides ongoing weather data
Communications – used to track the satellite systems
Navigation – the global positioning system (GPS)
Earth Observations – used to map surface features such as land use.
Military – provides secure communications for the military

8. Remote Sensing
Satellites use remote sensing instruments to collect data, which are transmitted from the satellite to the ground by electromagnetic waves.

9. Global Positioning System (GPS) – Network of satellites orbing Earth

10. Geographic Information System (GIS) – Program used to view and make images and maps.