Science ahh

Crust

• Outermost and thinnest Earth layer

• Solid rocks and minerals

Continental crust

• Thicker, less dense

• Mostly granite

• Approx. 30–70 km thick

Oceanic crust

• Thinner, denser

• Mostly basalt

• Approx. 5–10 km thick

Mantle

• Beneath crust

• Thickest layer

• About 2,900 km deep

• Composed mainly of iron- and magnesium-rich silicate rocks

• Physical behavior: mostly solid/semi-solid, can flow slowly

Atmosphere

What do we call the layer of air that surrounds and protects the earth

Goldilocks zone

What term refers to the habitable region around a star where a planet can support liquid water?

magma

Consists of hot semi solid rocks called?

Outer core

Composed of LIQUID iron and nickel
Extremely hot
Generates earth’s magnetic field

Inner core

Centermost layer
made of SOLID iron and nickel due to immense pressure
Hottest layer of the earth

Lithosphere and asthenosphere

Give me 2 names in upper mantle

Lithosphere

includes the crust and uppermost mantle.
broken into tectonic plates
SOLID

Asthenosphere

located beneath lithosphere
semi molten and plastic like
materials slowly flow
SEMI SOLID / PLASTIC

Mesosphere

From the lower mantle
extends from 660 km to 2900 km below the surface
denser due to high pressure
SOLID BUT CAPABLE OF SLOW FLOW