Formation of Landforms
Lesson two plan
LI:Students can explain the geomorphic processes that form landforms e.g. tectonic processes and erosion.
Resources
PowerPoint presentation labelled: Geomorphic processes
Weathering and erosion worksheet
ESWA Worksheet on Weathering and erosion- student worksheet
Getting carried awayworksheet
Notes:
Landforms are created by a variety of destructive and constructive processes, called geomorphic processes. The Earth’s entire surface, both above and below the surface of the ocean, is constantly being changed by these processes, which act at different rates.
Constructive processes include:
Tectonic movement, volcanoes and continental drift
Deconstructive processes include:
Weathering and erosion
Definition: Weathering: The breakdown of rocks due to the action of weather, chemicals, plants and animals.
Definition: Erosion: Is the process whereby soil and rocks are worn away and moved to a new location by agents such as wind, water and ice.
Youtube:Great natural wonders - the Twelve Apostles, Melbourne, Australia - David Attenborough - BBC
https://www.youtube.com/watch?v=iCe4diTfzRk
Notes:
The Twelve Apostles
The twelve apostles are unique rock formations on the southern Australian coast in the Port Campbell National Park. The 12 Apostles are one of the many geological sites in the Bay of islands, which is along the Great Ocean Road from Melbourne to Adelaide.
What are the Twelve Apostles and how were they formed?
The 45m tall rock stacks were formed through erosion. First, storms and salt water beat into the limestone cliffs, creating caves. As the southern weather continued its relentless battering, the caves slowly became arches, and then when they fell, the limestone rock stacks were formed. There are only 8 of the 12 Apostles left, but due to continuing erosion, the current cliffs are expected to become rock stacks. Who knows, in five years there could be fourteen apostles!
Activities:
Weathering and erosion worksheet
ESWA Worksheet on Weathering and erosion- student worksheet
Getting carried awayworksheet
Lesson 2 PowerPoint. This file has been compressed.
ESWA: Weathering and erosion worksheet
Getting carried away worksheet
Weathering and erosion identification worksheet
Content: investigate different landscapes and the geomorphic processes that create distinctive landforms, (ACHGK048, ACHGK050)
Geographical tools
Visual representation
Outcomes:
GE4-2
GE4-7
GE4-8
Differentiation:
A selection of worksheets have been used to support a variety of learners.