Weathering and erosion Maricruz Solano

Have you ever stopped to think what shaped the Grand Canyon, or Yosemite National Park? I got the answer for that. Weathering and erosion! That is the answer it was weathering and erosion that shaped the earths beautiful sites.

One important thing to know about weathering and erosion is WATER! Water is nature’s most mutual tool. For example, take rain on a frigid day. The water pools in cracks and crevices. Then at night, the temperature drops turning into ice, splitting the rock like a sledgehammer to a wedge. The next day under the beaming sun, the ice melts and trickles the cracked fragment away. This is called frost wedging, and when you see a cracked fragment on the side walk this might had happened to it.

I’m sure you are asking what other types of weathering is there, right? There also is biogeochemical weathering. This is when a lot of periodic elements and chemicals combine. For example, when you mix carbon dioxide and water ( CO2 +H2O) and you get carbonic acid (H2CO3) this is what makes acid rain. As soon as that burning acid hits metal or rocks it turns them white, or a aqua color. This shows that by combining the chemical with water it makes the such thing called acid rain. Now you know why the Statue of Liberty is green.

Why not talk about erosion? Did you know that the sand dunes, such as Death Valley , California. They were made by wind and sand storms. This is called erosion. Another example is Yosemite National Park it was made by a glacier . Glaciers usually leave a U-shaped gap. Erosion is when soil and rock moves with ice, water, gravity, and wind. Like a beach for example, a beach has many layers of sand and rock. that is a sign of erosion a big sign.