Background Radiation- Left over radiation

(moving energy) from the Big Bang

Layers of the Earth

Layers of Earth Pizza StyleLayers of Earth Pizza Style

The Moho - boundary between Crust and Mantle

The Mohorovicic Discontinuity marks the lower limit of Earth's crust.

The MantleThe Mantle

2/3 of the Earth’s Mass, 70% of Volume

Upper Mantle has Lithosphere (solid) and Asthenosphere pressure keeps it solid (plasticity)

2/3 of the Earth’s Mass, 70% of Volume

Upper Mantle has Lithosphere (solid) and Asthenosphere pressure keeps it solid (plasticity)

The CoreThe CoreExtremely Dense

1/3 Earth’s Mass

30% Volume

Outer Core: liquid, iron and nickel (magnetosphere)

Inner Core: Solid, Iron (HOT!!! OUCH)

Extremely Dense

1/3 Earth’s Mass

30% Volume

Outer Core: liquid, iron and nickel (magnetosphere)

Inner Core: Solid, Iron (HOT!!! OUCH)

Seismic Waves• Waves Created by an

Earthquake or Explosion

• Primary (P) Waves move through liquids, solids, Gas

• Secondary (S) Waves move through only solids

• Waves bend with changes in density

Shadow Zones

• Non-uniform rigidity in material

• No S or P waves can get through

• OR P can get through but not S

Isn’t the North Pole where Santa Lives?

The Earth’s Magnetosphere

-Created from movement of the liquid, which creates a electrical current in the outer core (iron and nickel) -Dipole is created (like a magnet)-Magnetic North and Magnetic South are different from Geographic North and Geographic South

Magnetowha?

GravityMass- the amount of matter in an object, independent of gravity.

Weight- measure of the strength of the pull of gravity on an object.

Law of Gravitation- states that the force of attraction between any two objects depends upon their masses and the distance between them.

Is your weight the same all over Earth? Think of

the shape and your distance from Earth at

different locations.

Movements of Earth

Funny Video

Seasons Video