Download Activity 20a - Minerals Council of Australia

ACTIVITY 20a
NAME___________________________
Read the following information about the Earth. Label the diagram using the words in the
box. Cut out and paste the completed diagram in your workbook.
The Earth has four main layers. These are; The crust, the mantle, the outer core and the inner core.
The crust is the layer we live on and is made up of the lightest material. The mantle is made up of molten
rock. The outer core is made up of very hot molten iron and nickel. The inner core is made up of solid
iron and nickel. It is solid because of the extreme pressure at the centre of the Earth.
Inner
Outer
Mantle
Crust
InnerCore
Core
OuterCore
Core
Mantle
Crust
2,400
2,240
2,880km
120km
kmthick
thick
2,400km
kmdiameter
diameter
2,240km
kmthick
thick
2,880kmthick
thick
3 3– –120
4,400°C
to
7,000°C
4,400°C
–
6,100°C
870°C
–
4,400°C
4,400°C to 7,000°C
4,400°C – 6,100°C
870°C – 4,400°C
solid
iron
and
nickel
molten
iron
and
nickel
semi-melted
solid
solid iron and nickel
molten iron and nickel
semi-meltedrock
rock
solidrock
rock
Adapted from “Science Rocks” Queensland Resources Council
Minerals Education Victoria
VELS Unit – Treasures from the Earth September 2007
Tel: (03) 8614 1851
Fax: (03) 9629 8603