8.14.3 Letmedo it Complete the following activity to practise this skill.
8.14 SkillBuilder activity 1. Apply what you have learned in this SkillBuilder to create a concept diagram of the reasons Australians live where they do. You may want to structure your concept diagram using some of the following aspects: • natural features or built features that attract people to live in certain places • push and pull factors • your own family’s reasons for living where they do, or your classmates’ families’ reasons for living where they do • reasons remote areas are settled • lifestyle choices. Checklist I have: • included a title • neatly constructed and presented the information • explained what each colour represents • ensured the ýnished diagram is easy for another person to understand.
LESSON 8.15 SkillBuilder: Understanding satellite images
LEARNING INTENTION By the end of this SkillBuilder you should be able to understand a satellite map.
8.15.1 Tell me What are satellite images?
Satellite images capture views of Earth from space, providing data like standard photos, colour infrared and radar. Collected by satellites and sent to Earth, these images can show close-up or distant views. Computer techniques enhance patterns on the Earth’s surface using this data. Landsat satellites, commonly used for such images, orbit 700 kilometres above Earth every 100 minutes with cameras that detect light variations. This process, called ‘remote sensing’, selects speciýc light bands and assigns false colours to reveal spatial patterns. FIGURE1 shows the Mount Lofty Ranges in South Australia with labelled patterns. Why are satellite images useful? Satellite images help geographers observe a much larger area of the Earth’s surface than photographs taken from an aircraft. They can also provide data relatively quickly. They are often used to monitor natural disasters, including cyclone activity, bushýres and þoods. Digital information from satellites is beamed to stations on Earth as radar or microwave signals. A computer program is then used to enhance the images. This enables the study of landforms, farmland, disasters, environmental change, weather patterns and even military targets.
Jacaranda Humanities Alive 7 Victorian Curriculum Third Edition
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