Transcript Nacho-Tonics

Plate Tectonics
Understanding what
causes the plates to move
EQ: How do you know the Earth’s
Core is hot?
 Fact:
No one has ever drilled
through crust
 Evidence:
 Magma
 Volcanoes
 Earthquakes
 Tsunamiis
Layers of the Earth
Upper
Mantle
Lower
Mantle
Outer
Core
Inner
Core
asthenosphere
3 Forms of Heat Transfer



Radiation- transfer of energy without
touching; light --- heat energy
Conduction- transfer of heat energy
through solids (metal pan for cooking)
very even
Convection- transfer of heat energy in a
liquid very unequal (hot spots and cold
areas develop that’s why you stir soups)
Nacho-tonics
 Using
Nachos you can simulate why
the Earth’s plates move
 The
materials will represent the parts
of the Earth
Nacho-tonics
 Pan
= core (inner core specifically
since it’s a solid)
 Cheese
= Mantle (liquid like but high
density material)
 Chips=
Earth’s Crust (solid less
dense than liquid underneath)
Origin of Atmosphere and Oceans
 Magma
released gases and liquid
Water Vapor as it came to the
Surface
 This can be “proven by” placing lid
over pan. Lid acts as Earths
Magnetic Field Shielding Earth from
Solar Wind
 As a result a “thick” atmosphere
develops and clouds and rain form