Unit 1: Introduction to Earth systems Earth and Environmental Science
The Earth system involves four interacting systems: the geosphere, atmosphere, hydrosphere and biosphere. A change in any one ‘sphere’ can impact others at a range of temporal and spatial scales. In this unit, students build on their existing knowledge …
Unit 1 | Earth and Environmental Science | Science | Senior secondary curriculum
ACSES017
Precise dates can be assigned to points on the relative geological time scale using data derived from the decay of radioisotopes in rocks and minerals; this establishes an absolute time scale and places the age of the Earth at 4.5 billion years
ACSES017 | Content Descriptions | Unit 1 | Earth and Environmental Science | Science | Senior secondary curriculum
ACSES016
A relative geological time scale can be constructed using stratigraphic principles including superposition, cross cutting relationships, inclusions and correlation
ACSES016 | Content Descriptions | Unit 1 | Earth and Environmental Science | Science | Senior secondary curriculum
ACSES029
The diversification and proliferation of living organisms over time (for example, increases in marine animals in the Cambrian), and the catastrophic collapse of ecosystems (for example, the mass extinction event at the end of the Cretaceous) can be inferred …
ACSES029 | Content Descriptions | Unit 1 | Earth and Environmental Science | Science | Senior secondary curriculum