Astronomy, Weather and Climate, Geology, Weathering and Erosion, and Earth's Waters

My favorite topic in the unit about astronomy was black holes and exploding stars. When stars die, they will often explode. Some will form black holes and others may form the beginnings of other stars and possibly another galaxy. Galaxies are systems of stars that make up a certain section of our universe.

http://focus.aps.org/files/focus/v17/st14/big-1.jpg

My favorite topic to learn about in weather and climate were there different types of fronts there are. There are cold, warm, stationary, and occluded fronts. Cold fronts are when warm air rises and cold air sinks. A warm front is where the warm air pushes the cold air out. An ocluded front is when cold air collides and the warm air rises. A stationary front is where cold air collides with warm air.

http://earthstorm.mesonet.org/images/Fronts.gif

My favorite topic for geology was plate tectonics. I learned that years ago, all the land masses like the continents were joined together into one big land mass called Pangea. Wagner, a german scientist, was the first one to find out this information. He found a water dinosaur's skeleton from an ocean in North America in a dry area like Africa. Wagner stated that Pangea moved due to plate tectonics. Plate Tectonics are movements with plates under the Earth's Surface causing Pangea to break apart. Plate Tectonics also cause earthquakes.

http://geology.csupomona.edu/drjessey/class/Gsc101/pangea.gif

My favorite lesson taught through weathering and erosion was erosion. Erosion can erode or wear down rocks at Earth's surface which can cause landslides, mountains, or giant rocks. Mountains and giant rocks can be formed because after years of erosion becasue eroded rocks can "cling' together forming various landforms. Erosions can cause landslides because eroded rocks and other particles become loose and are able to slide down various landforms.

http://admiralexcursions.com/wp-content/uploads/2007/09/devils-bridge1.jpg

My favorite chapter to learn about in Earth's waters was how we clean our water and where we get our water. I thought that it was interesting learning about how we cleaned and receive our water from. I also found it interesting to learn where we clean our water. Our water is reused constantly and is cleaned constantly also. The cleaning process for water is complicated however it helps us tons.

http://consumeist.files.wordpress.com/2009/04/water.jpg

In conclusion, I have learned so many awesome lessons this year taught by an awesome teacher (Mrs. Casey) and I hope that as I go on to high school that Earth science is this fun and the taechers are as well.