3. Explain why people settle and farm on floodplains. Select all answers. a. The land is flat. b. The land is steep. c. Regular flooding improves soil fertility. d. It is easy to sandbag during times of high river flow. e. A river is a source of water. 4. Explain how rivers are part of the water cycle. 5. Refer to FIGURE2 and compare the scale of Australia’s longest river with the world’s longest river. ANALYSE AND APPLY 6. Identify a river that flows through the capital city in one state or territory in Australia. Describe its source, any tributaries and its mouth. EVALUATE AND COMMUNICATE 7. Propose what you think will happen to deltas if sea levels rise. 8. Predict the changes that will occur to the waterfall in FIGURE5 . Justify your answer. 9. Discuss what changes will occur along a river if there is unusually high rainfall in its upper course. Think in terms of erosion and deposition. 10. Explain whether governments should stop people from living on floodplains. Justify your response. Answers and sample responses for this topic are available online.
LESSON 13.6 Australian landforms
LEARNING INTENTION By the end of this lesson you should be able to identify the distinctive landform features and their distribution in Australia.
Tune in Many of Queensland’s mountain peaks were formed by volcanic activity around 20 million years ago. The Glass House Mountains, north of Brisbane, are volcanic plugs. Over millions of years, the volcano that surrounded the plugs has been worn away by weathering and erosion. 1. What do you think led to the formation of the volcanic plugs? 2. Distinguish between weathering and erosion. 3. Why do you think weathering and erosion wore away the volcano but not the plugs?
FIGURE1 The Glass House Mountains, Queensland
304 Jacaranda Humanities Alive 8 Victorian Curriculum Third Edition
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