martes, 7 de septiembre de 2010

Album # 2

Album # 2 (Solar system)





Introduction

This work has of objetive; know about the solar system, the planets that conform the sola system and the principal characteristic.











The planet :



The sun: The only one star in all the solar system.

It‘s a middle star compare with other. Is the center of all the solar system.











Mercury: probes have orbited mercury and sent back photos, but don‘t look for a human landing. Mercury is too hot . And solar radiation would be dangerous.











Venus : under Venus ‘s thick blanket of clouds , temperature reach about 900 degrees f. Air pressure is over 90 times that on earth .







Earth: Earth (or the Earth) is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets. It is sometimes referred to as the World, the Blue Planet .









Mars: mars are cold and frosty .Its air is mostly unbeatable carbon dioxide. Dust storms are frequent. But it’s fairly close, and may have water underground. That’s why it‘s worth a try.



Jupiter: Jupiter doesn’t have a surface to land on. It’s a huge ball of swirling gas above a deep, liquid ocean.





Saturn: another ball of gas and liquid , like Jupiter . And it’s farther away.



Uranus, Neptune: Too far. Too cold .Too dark . For the time being it’s impossible to think of visiting these “outer “planets.

Neptuno                 















Uranus
 
 
 
 
 
 
 
 
Conclucion



Now that we do the work we learn that the solar system have planets .And the sun form part of it .Mercury is the planet more close to the sun and that is wry is the most. The Earth is the third planet of the solar system

lunes, 6 de septiembre de 2010

Solution

What are the tectocnis Plates ?

Continents and seabeds alike sit atop these slabs moving at a rate of about 1—3 inches per year (2.5 — 7.5 cm). As the plates move, pressures build at the plate boundaries. Depending on the plates involved, forces of varying types create geological phenomenon; crust is created, destroyed, or crushed. Earthquakes are often triggered. Continents and plates not only change position but shape over extended periods of time.




Two continental plates colliding or converging will eventually create mountain ranges as the plates compress and push crust upwards.



A thin oceanic plate converging with a thick continental plate will be pushed beneath the continental plate, creating a subduction zone -- an area marked by a deep submarine trench where the oceanic plate is being driven downwards, eventually returning to the molten mantle. As the plate slides into the soft hot interior it pulls the rest of the plate along. This process is referred to as "slab pull" and since 1994 has been theorized to be the main driving force behind plate tectonics.



As crust is destroyed in subduction zones, it is being created in divergent zones. Here plates are pulled away from one another. The best example is at the mid-Atlantic ridge. This is a segment of a much larger mountain chain that encircles the globe under the oceans, winding its way around the continents. The mid-Atlantic ridge lies halfway between the east coast of the United States and Africa, and marks the plate boundaries of the North American and African plates. Volcanic material is constantly welling up from the seafloor at the site of the spreading plates, creating new sea crust as the old crust moves outwards. Prior to 1994, seafloor spreading was thought to be the driving force of plate tectonics.



Plate boundaries might also move laterally past one another, as in the case of the Pacific and North American plates. The former sits under the Pacific Ocean, extending under the edge of California's coast, reaching inland only as far as the San Andreas fault that marks the plate boundary. This plate moves northwesterly at a rate of about 2 inches (5 cm) per year, while the North American plate on the opposite side of the San Andreas fault is moving in a southerly direction. Pressures build until they are sufficiently strong to force the plates to "slip" past one another. The "slip" is experienced as an earthquake and explains why this region of California is so geologically active; though the other types of forces also create earthquakes.



viernes, 3 de septiembre de 2010

vocabulary # 6

mineral = a solid material of earth 's crust with a denfinite composition .

luster  = the way light bounces off  a mineral 's surface

streak = the color of the powder left when a mineral is rubbed against a a hard , rough surface .

hardness = how well a mineral esists scratching .

cleavage = the tendency of a mineral to break along flat surfaces .

ore  = a mineral containg a useful subtance .

gem  = a mineral valued fo being rare and batiful .

nonenewable resource = a resource that cannot be replaced within a shot  period of time or at all .



Image




mineral













luster













streak













hardness

                                                     

cleavage

ore
gem


nonrenewable resources

jueves, 2 de septiembre de 2010

vocabulary # 5

solar system = the sun and the objects that are traveling around it .

planet = any of the nine large bodies that travel around  the Sun and  shine by refleccting  its light .

gravity = a force of attraction  , or pull , between  any object and any other object around it .

insertia = the tendency of a moving object to keep moving in a straight line .

lithosphere = the hard, outer layer of Eath. about 100 kilometer thick .

crust = the ocky surface that makes up the top of the lithosphere .

resources = any material that helps support life on earth .

hydrosphere  =  Earth ' s water .


Image



solar system









Planet









gravity












inertia









lithospere












crust






resource







hydosphere