Which 3 things increase as depth increases into the Earth?

• time

• Pressure

• temperature

• density

What is the thinnest layer of the Earth?

• Mantle

• inner core

• outer core

• crust

Why is the core more dense than the mantle or crust?

• It has more aluminum

• it has more iron

• it has more tin

• it has more basalt

How do scientists know the Earth has layers?

• Drilling into the mantle

• Volcanoes

• Seismic waves data

• ocean waves

What process is the pictures showing?

• comprehension

• mantle

• Earth's layers

• convection

• melting

What processes causes tectonic plates move?

• mountain building

• earthquakes

• convection currents

• water cycle

• subduction zones

What kind of energy moves the molten rock in Earth's mantle?

• thermal energy

• chemical energy

• personal energy

• solar energy

• wind energy

What phenomena takes place that results in the formation of new crust at mid-ocean ridges?

• Earthquakes

• Inner Core turbulence

• plate tectonics

• erosion of mountain ridges

• magma rising to the surface

What is the thickest layer of the Earth?

• the crust
• the mantle
• the outer core
• the inner core

What is the correct order (starting from the surface) of Earth's layers?

• crust, outer core, inner core, mantle
• mantle, outer core, inner core, crust
• crust, mantle, outer core, inner core
• outer core, inner core, crust, mantle