Lesson 15 - Satellites
We live in a technology and communication-rich world. A lot of today’s communications rely on satellites to receive and transmit signals from one place on Earth to different parts of the world. Satellites are used to transmit TV and cell phone signals. They are used to locate our position on the globe (GPS), used to track and forecast weather, and to explore and map our Earth. This lesson looks at the different types of satellites in use today, how they are used and where they are located and why they are used.