A Sigma Science Presentation

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Presentation transcript:

A Sigma Science Presentation 3D Rocks and Soils Looking at Rocks

Finding and Using Rocks What do you think is beneath all the land and oceans on the planet Earth? The Earth is a SPHERE. If you could cut this sphere in half you would see the four layers that make up the planet Earth. The Mantle The mantle is the rocky layer located under the crust. The rock in this layer is quite thick and can be very hot. The Crust The crust is the thin outer layer of the Earth. This is the layer we walk on. It is made from a thin layer of cool rocks. The Inner Core The core is the iron-nickel centre of the Earth. It is very hot and under great pressure. The Outer Core The outer core layer is made from molten metals and rock. It is so hot that it is a liquid.

Using Rocks The rocks we use are gathered or made in a number of ways: Collected from the Earth's surface Dug up and quarried using special digging machines and tools Made from materials such as clay in brick-making factories

Rocks can be either natural (part of the Earth), or manufactured (made in factories). Look at the rocks below and say whether you think the rocks are natural or manufactured: Granite Pebbles Slate Roof Sandstone Wall Breezeblocks Chalk Concrete Bollard Brick Wall Concrete Lamp Post Precious Stones Clay Chimney Pots

Rocks can be used for a variety of purposes What are the rocks being used for in the images below? Housing Gravestones Monument Steps Statue Walls Roads Paving