earths interior

Front

Which area of the Earth is least dense? Options: Outer core, inner core, mantle, crust

Back

crust

Front

Which layer of earth is molten? Options: inner core, outer core, crust, lithosphere

Back

outer core

Front

Which layer is plastic and has the consistency of silly putty allowing movement?

Back

asthenosphere

Front

How do scientists know the Earth has layers?

Back

Seismic waves data

Front

What process is the pictures showing?

Back

convection

Front

What processes causes tectonic plates move? Options: mountain building, earthquakes, convection currents, water cycle, subduction zones

Back

convection currents

Front

What evidence exists that proves that Earth has layers? Options: They can be seen from special locations on the Earth, observations of earthquakes and buildings swaying, seismic data from earthquakes on the other side of the Earth, tsunami data from other countries and the impact on the land, rock samples from deep layers.

Back

seismic data from earthquakes on the other side of the Earth

Front

What is the thickest layer of the Earth? Options: the crust, the mantle, the outer core, the inner core

Back

the mantle

Front

What describes the outer core? Options: solid, liquid, viscous, gas

Back

liquid

Front

What layer is a semisolid and acts like a plastic?

Back

Asthenosphere