Transcript Earths crust

By Mark and Fred
•The four pieces earth crust are the inner core and
the outer core the mantle and crust.
•The crust are made of various chemical elements.
•Earth gets hotter when you go more below the
earth.
•T he core is mostly made of iron and nickel.
•When grains of rock are dissolved chemicals are
deposited in layers then it turns into the crust.
•Overtime the rock hardens into solid rock.
•The crusts are made of different chemical
elements.
•The mantle is 1800 miles down.
•The core is 4400 mile in diameter.
•Earths outer core is 6700 to 7800 degrees.
•The inner core is 12600 degrees.
•Every time you go down about a mile earths crust
it goes up 70 degrees.
•The crust is becoming thicker and bigger. Earths
crust cannot be spread everywhere.
These are
the crusts
in the
Earth
Here are our
resources
Dutch, Steven I. "Earth." World Book Student. World Book, 2012.
Web. 25 Oct. 2012.
We used Kid Pix for the first picture
Earth-crust-cutaway-English-Large_label.
layers_of_the_earth.jpg
Earth_nterior.gifi
And the great book that we used was Exploring the Solar System By AMANDA DOERING
TOURVILLE
Thank you for watching By Fred
and Mark