Science Lesson

Layers of the Earth

• Today we will be learning about the layers of the Earth.
• Does anyone know any layers already?

Layers of the Earth

Facts about the Crust

• The Crust is an outer solid layer of the earth
• This is the layer in which life as we know it exists!
• It is about 3-5 miles thick in the ocean bed
• This is the only layer in the earth that can be investigated by drilling into it!

Facts about the Mantle

• The mantle is 1,800 miles thick
• Makes up 85% of the Earths weight
• It is made of molten iron, minerals, and other semi solid rocks that can flow under pressure

Facts of the Outer Core

• Third layer of the Earth
• Only liquid layer
• Made up of iron, nickel, and small amounts of other substances
• Is responsible for Earth's magnetic field

Facts about the Inner Core

• Earth's innermost section
• Solid
• Made up of iron-nickel alloy
• 5400 Degrees Celsius

Activity!

• Placed on every pod's desk is four different colors of playdough
• Create all layers of the Earth!