1. Jenny is interested in the development of space technology. This is what she read about artificial satellites. Let’s look at the pictures and explore with her! (1) What is an artificial satellite? (2) What are the functions of different kinds of artificial satellites? 2. Jenny applied what she learned in her daily life. Before she went on a picnic in Sai Kung with her family, she checked the weather forecast online. When they arrived at Sai Kung, she searched for the hiking routes using an electronic map. Which artificial satellites provided the information that Jenny needed? 4 What are the functions of artificial satellites? How do they affect our daily lives?
navigation satellite
Earth observation satellite
3
2
weather satellite
1
position and navigate
observe the environment and resources on the Earth
monitor the weather
Artificial satellites are unmanned spacecrafts. They surround the and operate in orbit. Quick Check
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