Australia · ACARA Content Descriptions
Year 11 Earth and Environmental Science.
This Year 11 Earth and Environmental Science curriculum explores the dynamic interactions between Earth's spheres, focusing on the processes that shape our planet. Students will investigate Earth's formation, tectonic activity, energy transfers, and the vital biogeochemical cycles that sustain life, aligning with the Australian Curriculum.

01Earth Systems and Formation
Students explore the origins of the Earth, its internal structure, and the fundamental concept of Earth as a system of interacting spheres.
Investigate the scientific theories regarding the formation of the Earth and the evolution of its early atmosphere. Students will analyse evidence from the geological record.
Examine the compositional and mechanical layers of the Earth. Students will explore how seismic waves provide evidence for the Earth's internal structure.
Define and explore the interactions between the lithosphere, hydrosphere, atmosphere, and biosphere. Students will model how matter and energy flow between these systems.

02Plate Tectonics and the Rock Cycle
This unit investigates the mechanisms of plate tectonics, the resulting geological phenomena, and the continuous recycling of Earth materials through the rock cycle.
Analyse the theory of plate tectonics and the mechanisms driving plate movement. Students will investigate divergent, convergent, and transform boundaries.
Investigate the causes and impacts of earthquakes and volcanic eruptions. Students will relate these phenomena to specific tectonic settings.
Explore the processes of the rock cycle and how igneous, sedimentary, and metamorphic rocks are formed. Students will identify common rock-forming minerals.

03Energy Transfers and the Atmosphere
Students analyse how energy from the sun drives atmospheric and oceanic circulation, shaping global climates and weather patterns.
Examine the Earth's energy budget and the role of solar radiation. Students will differentiate between the natural and enhanced greenhouse effect.
Investigate global atmospheric circulation patterns, including the Coriolis effect. Students will analyse how these patterns influence regional weather and climate.
Explore the drivers of surface and deep ocean currents, including thermohaline circulation. Students will evaluate the role of oceans in regulating global climate.

04Biogeochemical Cycles and Ecosystems
This unit examines the flow of energy and matter through the biosphere, focusing on biogeochemical cycles and the impact of environmental changes.
Analyse the biogeochemical cycling of carbon and nitrogen through Earth's spheres. Students will identify major reservoirs and fluxes for these elements.
Investigate the processes of photosynthesis and cellular respiration. Students will model energy flow and matter transfer through food webs.
Evaluate the impact of human activities on ecosystems and biogeochemical cycles. Students will discuss mitigation and adaptation strategies for environmental changes.