Why+Earthquakes+Happen

__**Why Earthquakes Happen**__ In this lesson students will learn how earthquakes occur The planet we live on is constantly moving. Under the earths crust are huge moving rocks called Tectonic plates When these plates move sometimes they brush or even collide together. This is where the earthquake comes from. The harder they collide the bigger the earthquake. After an earthquake happens there are always aftershocks that can last anywhere from weeks to years depending on how big the original earthquake is. Here is a video of an earthquake: [|Earthquake VIdeo] 1.)How do earthquakes happen? 2.)What happens after an earthquake? 3.)What are the plates called under the earths crust?
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