Thursday, February 25, 2010

Ring of Fire

earthquakes&volcanoes
Is there also a relationship between the plate boundaries of Earth and volcanoes? Yes there is. Were some volcanoes are on the map there are some earthquakes too. For example there are earthquakes and volcanoes all along the west coast on the whole North American continent.


boundries
Aleutian Islands: Ocean-continent convergent boundary
Cascades Volcanoes:Continent-continent convergent boundary
San Andreas Fault Zone:Ocean-continent convergent boundary

Plate Tectonics


Pangea:
When Pangea was last formed as one conitnent it was about 235 million years ago.

Continental Breakup by Mantle Plumes:
This rift occured about 1.1 billion years ago.
The lava turned into a rock called basalt.

Cambrian era:
The late Cambrian about 425 million years ago.

Future World:
The major mountain range which is now in North Africa is The Medditerranean Mountain Range.
The two continents that North America will join are South America and Africa!

Earthquakes

There have been 8 earthquakes that happened today February 2nd, 2010 that have happened around the world. The most recent earthquake was on the California Border. The older earthquakes have happened more on the west cost off of california and oregon.

All of the earthquakes that happen in South America usually happen all over the west coast. As you go more into South America the depth gets greater.

Thursday, January 21, 2010

Tornadoes

http://tornadoeshurricanes.suite101.com/article.cfm/worst_tornado_in_us_history

The worst Tornado in US History was The Great Ti-State Tornado of 1925. This tornado destroyed everything! Bark was stripped of trees, houses were picked up and swept away, along with cars! The ground was torn up and trees were on the ground! There was 652 deaths and 2000 were injured. At that time the total damage that was done was about 16.5 million which in todays economy would have been about 2 million dollars.

Sunday, January 10, 2010

Clouds

mammatus clouds: a cellular pattern of pouches hanging underneath the base of a cloud. its nicknamed the breast cloud.


lenticular cloud: these are clouds that form around hills and mountains.

roll cloud: roll clouds form on near advancing cold fronts

noctilucent cloud: Noctilucent clouds can form only under very restricted conditions. Noctilucent clouds are made of tiny crystals of water ice, higher than any other clouds in Earth's atmosphere. Clouds in the Earth's lower atmosphere form when water collects on particles, but other clouds may form directly from water vapor.

my favorite was the lenticular cloud because it looks nice and peaceful around a hill or mountain

Snow Scavenger hunt


Thunder Snow (picture 1)
Thunder snow is really heavy and dry making driving difficult and dangerous.

Rime (picture 1)
Rime iscrunchy, rough snow that looks like popcorn or styrofoam that you notice on trees and on windy mountaintops. Rime forms on the surface of the snow when super cooled water in clouds freezes onto the snow surface.

Firn
Firn is that type of snow ontop of glaciers. It has been there for years and uts granular,it has not yet turned to ice.

Watermelon Snow
It is a pink snow that usually is on the top of mountains

Sunday, December 13, 2009

5 spheres

Nothing really tells us what did kill the dinosaurs , It remains a mystery. There are many theorys that might have caused the dinosaurs extinction. An asteroid could crash into the lithosphere which is the earths crust. It can cause earth quakes and volcanic eruptions. It can even effect the hydrosphere which is the solid, lliquid, and gaseuous forms of water on earth. It could cause floods and drought which means the dinosaurs either drown or can't get any water. This is a big one. If an asteroid came down and hit the earth it can easly affect the biosphere. All plant and animal life is in the biosphere. If an asteroid hits any of that it can cause food shortages and even forest fires. Pretty soon there will be no food or shelter for the dinosaurs to eat or live in and there comes along extinction. The asteroid can affect the earths atmosphere too. From all the dust and debree coming off the asteroid, it can make the air polluted and hard to breathe. Some dinosaurs could stop breathing and die. It could even be hard to see too! The spheres that could have been involved are the:
-Lithosphere
-Biosphere
-Hydrosphere
-Atmosphere
There is another theory of the dinosaurs becoming extinct. A volcano could have erupted causing fires, drought, and even kill some of the dinosaurs. There many more examples of what could of happened.