lunes, 24 de marzo de 2014

EARTHQUAKES

Watch this video:EARTHQUAKES





Match the words with their definition


earthquake, seismograph, tectonic plate,seismic shock wave, Richter scale, Fault line





1-the sudden shaking of Earth's crust caused by the release of energy along fault lines or from volcanic activity.

2-large, moveable segment of the Earth's crust.
3-instrument that detects and records vibrations caused by seismic shock waves.
4-ordered series of numbers (1-10) used to indicate the amount of energy released during an earthquake. The Richter scale is now outdated. Scientists now use the moment-magnitude scale.
5-fracture in a rock caused by tectonic activity pulling one side of the rock in a different direction.
6-vibration that travels from the focus of an earthquake in all directions

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