- Tectonic plates are floating on magma
- Faults - cracks between tectonic plates
- Faults release energy - earthquakes are caused
- Seismic waves - measured by seismometers
- Seismographs draw seismic waves
- Tectonic plates - crustal plates
- When tectonic plates move away, volcanoes are created ; when tectonic plates move together mountains are created
- Epicenter - the center of an earthquake
- 10 times stronger = 32 times more energy
- Richter Scale = used to measure the magnitude of earthquakes
Monday, January 24, 2011
Bill Nye: Earthquakes
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