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Thursday 16 June 2011

Layers of the Earth



WALT: Make a model of the layers of the earth out of play dough.

So....that when we learn about natural disasters we can use our knowledge of the layers to understand them better.

To....help us in topic and science and learn about the earth around us.

CRUST:The crust contains continents as well as the seas.
The thickness of the crust is 15-75km.
The crust is the earth that holds the 7 tectonic plates and is part of land and sea.

MANTLE:The upper mantle is 400km thick.
The lower mantle is 2300km thick. It is more dense than upper mantle.
The mantle is made out of Iron,magnesium and silicates.

OUTER CORE:The outer core is 2300km thick. The outer core is made out of burning liquid and it is really hot. The core holds Iron,nickel and sulphur.

INNER CORE:The inner core is 1200km thick. It contains Iron,nickel,sulphur and it is solid. The temperature is really hot! It is 6650 degrees celsius!

1 comment:

  1. That was a really detailed information report i liked it and the photo well done Keleni!

    ReplyDelete