Science Blog
These are the earths major continental and oceanic plates.
Today in science we were assigned the homework of writing one “good” sentence on five types of plate movements. We also had to include what was happening in each movement. The first type of movement that I wrote about was when two continental plates slide past eachother. When this occurs there is a lot of friction made. This can be dangerous because when this happens it creates earthquakes which can be deadly. A deadly earthquake occured on the San Andreas fault. The next type of plate movement is when two oceanic plates move apart. When this happens the magma under the ocean floor is pushed up and when this hot lava hits the cold water, it starts to cool. This makes new land when it turns to rock overtime. You can see the result of this at the Mid Atlantic ridge. When two oceanic plates collide, one is pushed under the other and this forms trenches. The Aleutian trench was formed by this movement. If two continental plates collide they keep pushing up against eachother and this force literally folds up the land which forms mountains. The Himalayas where formed this way when the Indian plate collided with the Eurasian plate. Lastly, there is the movement of a oceanic colliding with a continental plate. When this occurs the oceanic plate will go under the continental plate which wrinkles up the sea floor causing underwater mountains to be formed. An example of underwater mountains is the Cascades that are located on the Washington and Oregon coastline.
