Extreme Earth Events - 12ESS
For this unit we will be using Education Perfect and a textbook to aid in our learning.
As we go through the unit I will be making notes and they will become available via the Notes link on Google Classroom.
Open Google Classroom > Classwork and check you can find the notes.
Throughout this unit we will be doing past exam questions as homework. This is to help you become accustomed to how they will ask questions in the end of year exam.
Open Google Classroom > Classwork and ensure you can find the homework links.
Collect your diagram and glue it into your books.
The centre of Earth - is solid and about 1,250 km thick. Even though temperatures reach 6000˚C the inner core pressures are so great that the nickel and iron cannot melt.
At almost 2,200 km thick the outer core is made of molten nickel and iron at ~4500˚C. The molten metal spins around as the earth rotates and is responsible for the earth’s magnetism.
Watch Cosmos from 17min