TRB 4:3 - Investigation 3 - Weathering Summary:These classroom activities will help students understand 4 types of weather processes: wind, running water, plant growth, and freezing water. Main Curriculum Tie: Science - 4th GradeStandard 3 Objective 2Explain how the processes of weathering and erosion change and move materials that become soil. Materials:Worksheets for each student Activity 1 Materials16 oz. paper cups Colored Chalk Salt Activity 2 MaterialsPlastic bottle with lid Small pieces of sandstone (about 3 pieces per bottle) Water Activity 3 Materials16 oz. paper cups Bean seeds Plaster of Paris Paper towels Activity 4 MaterialsSmall plastic bags Clay (the soil kind) Water Additional Resources Videos: Bill Nye Video, Erosion. Attachments Background For Teachers:Soils form over millions of years from parent material that is broken down by weathering from wind, water, temperature, chemical changes, and living organisms. Over time, enough expansion and contraction cause rock particles to chip off. Instructional Procedures
Sydney Basin - landform | NSW Environment, Energy and Science Topography The Sydney Basin Bioregion lies on the east coast and covers a large part of the catchments of the Hawkesbury-Nepean, Hunter and Shoalhaven river systems. It consists of a geological basin filled with near horizontal sandstones and shales of Permian to Triassic age that overlie older basement rocks of the Lachlan Fold Belt. The sedimentary rocks have been subject to uplift with gentle folding and minor faulting during the formation of the Great Dividing Range. Erosion by coastal streams has created a landscape of deep cliffed gorges and remnant plateaus across which an east-west rainfall gradient and differences in soil control the vegetation of eucalypt forests, woodlands and heaths. Geology and geomorphology The Sydney-Bowen Basin was formed when the earth's crust expanded, subsided and filled with sediment between the late Carboniferous and Triassic. The frontal slope of the Blue Mountains is formed along the Lapstone monocline. Geodiversity Soils Documents to download
Geology of Sydney Harbour Sydney Harbour is made up of mostly sandstone and shale formed during the Triassic period (about 220 million years ago). These formations were later raised to their present heights by earth movements, starting in the Jurassic p The eastern part of the harbour is predominantly Hawkesbury sandstone. Sandstone is a very hard rock that tends to break away in large blocks leaving the boulders and vertical cliffs that characterises the Sydney coastline. To the west the harbour is predominantly made up of Ashfield Shale. Along some parts of the harbour there are some low lying areas of sand that has been deposited by water (alluvium) running between hills of sandstone.
Indigenous Weather Knowledge - Bureau of Meteorology Aboriginal and Torres Strait Islander people have developed an intricate understanding of the environment over many thousands of years. Artist: Laurie Nilsen The artwork used in the design of this website represents the relationships between seasonal, meteorological and astronomical changes - and how the Mandandanji people read these changes to inform life on country. About the Indigenous Weather Knowledge website Learn more about the Indigenous Weather Knowledge (IWK) website and the Bureau of Meteorology's commitment to strengthening respectful and collaborative relationships with Aboriginal and Torres Strait Islander people. About the Indigenous Weather Knowledge website Language, culture and environmental knowledge See an overview of the relationships between language, culture and environmental knowledge. Language, culture and environmental knowledge Reconciliation Action Plan Download our RAP