Natasha's+Earthquake+Page

=Back to Natasha's Page= = Earthquakes Week 3=

How do the plates move?
Plates at our plates surface move because fo the intense heat in the earth's core that causes molten rock in the mantle layer to move. It moves in a patteren called a convection cell that forms when warm material rises, cool, and eventually sinks down. As the cooled material sinks down it is warmed and rises again. Thats how the plates move.

= Earthquake Week 7 =

Explain how a seismograph works?
Scientists use a seismograph to measure an earthquake. The seismograph moves when the earth is shaking, there is a recording device that measures how far the rest of the seismograph has moved with the mass.