Spherical Earth
What shape is the Earth?
Spherical
Earth's layers formed based on their _____________.
DENSITY
Which landform is the most common on earth?
PLAINS
A ball shaped object
Sphere
What is the equation for density.
D= m/V
What are the four layers of the earth in order from inner most to the surface.
-Inner Core -Outer Core -Mantle -Crust
What is a plateau?
Landform with low relief and high elevation. Steep, rugged sides.
Earth's entire solid body
GEOSPHERE
What two factors does gravity depend on?
mass and distance
What are the five earth systems?
Geosphere, Biosphere, Atmosphere, Cryosphere, Hydrosphere
What is the asthenosphere?
plastic molten layer found within the mantle.
What is topography?
term used to describe the shape of an area.
The outer part of the magnetic field that interacts with cosmic particles.
MAGNETOSPHERE
Glaciers are a part of which earth system?
Cryosphere
Describe how the solar system formed in four steps.
1. Solar nebula formed (cloud of gas, ice, and dust) 2. Gravity flattened nebula out into a disk shape. 3. Disk started spinning. Gravity pulled densest materials went to center forming our Sun 4. Gravity pulled leftover materials together and formed our planets.
Describe the inner core & outer core. How are they different?
-Outer Core: Liquid. made out of iron & nickel.
-Inner core: Solid. made out of solid iron crystals.
Describe each layer of the earth. (4)
CRUST- thinnest layer. rocks made out of oxygen and silicon. two types are oceanic and continental. MANTLE- thickest layer. rocks contain iron and magnesium. asthenosphere- plastic layer. lithosphere- uppermost mantle and crust. OUTER CORE- liquid. made of iron and nickel.Second densest layer. INNER CORE- solid. made of solid iron crystals. spins faster than rest of earth.