AC9S5U02 Year 5 Science

Content descriptor describe how weathering, erosion, transportation and deposition cause slow or rapid change to Earth’s surface

Elaborations

• • Elaboration identifying types of weathering caused by mechanical means such as by wind abrasion, cycles of extreme heat or cold, and frost wedging; and biological means such as by plants and tree roots
• • Elaboration exploring how erosion can be caused by moving air or moving water and how substances such as surface soil are relocated, and identifying examples of erosion on a local or regional scale
• • Elaboration analysing the difference between weathering and erosion and comparing the timescales over which these processes can occur
• • Elaboration modelling the effects of erosion on a simulated landscape and exploring factors that mitigate its effects
• • Elaboration investigating how humans have changed local landscapes and predicting the effect these changes might have on rates of erosion
• • Elaboration considering how First Nations Australians are impacted by the rapid erosion of sand dunes and the resulting effect of saltwater on culturally significant freshwater swamps
• • Elaboration considering the effects of significant rainfall, such as a monsoon, on the transportation and deposition of river sediments in the Asia-Pacific region