Chapter 1: The Earth Flashcards
The solar system
The solar system consists of the sun, eight planets and their moons.
The sun
The sun is a giant burning ball of fire that the eight planets revolve around
The crust
The crust is the part of planet earth that we live on, it is earths outer skin and is made of rock
The mantle
The mantle is the layer beneath the crust, it is normally about 4,000 degrees Celsius in the mantle. The mantle is made up of semi-molten Rock, or magma
The core
The core is the inner part of the earth. It is made from iron and nickel. It’s temperature reaches over 5000 degrees
Plates
The earth is broken into many different sections. Each section is called a plate. There are seven main plates and several minor ones.
Convection currents
Convection currents occur when magma moves upwards towards the crust. Here it cools and sinks back down to the core, and the cycle starts again.
Earth
The planet that we live on