Vocabulary:Invisible Light

electromagnetism= The production of magnetism by electricity and the production of    electicity by magnets .





electromagnetic spectum = all the wavelengths of visible and invisible light in a short (gamma rays) to long(radio).

Laser= a device that produces a thin stream of light of just a few  close wavelengths .

Vocabulary:Colors of light

prism = a cut of piece of clear glass (or plastic) with two opposite sides in the shape of a triangle or other geometric shape.

spectrum = a band of colors produced when light goes through a prism.



primary color = red , green, or blue ; mixing these colors can produce all the colors absorbs one primary color of light and reflects the other two .

primary pignent = magenta , cyan , yellow ; material with any of these colors absorbs one primary color of light and reflects the other two.

Vocabulay:Light and Lenses

opaque=completely  blocking light from passing through.

Transparent=letting all light through ,so that objects on the other side can be seen clearly .

translucent= letting only some light through, so that objects on the other side appear blurry .

polarization = allowing light vibrations  to pass throught in only one  direction .

refraction =the bending of light rays as they pass from one substance into another.

convex lens = a lens that curves outward (is thicker at the middle than at the edges ) and brings light rays together .

concave lens= a lens that curves inward (is thicker at the edges than at the middle ) and spreads light rays apart.

Air Pollution

Air Pollution

By: Michelle Concepción

List # 9

Teacher: Ramón Guerra

Day: 22-9-2010 

¿What is air pollution?

Air pollution is problems that are in all communities because are in the air the air pollution is the putting chemicals that can affect the air in a killed way like the problem that are in my community there are a industry of Cars ‘ s Toyota . All the time there are a lot of Smoke. My neighbor all was sneezing by the terrible smoke of the cars industry.

Possible solutions  

The possible solution of this problem can be:

1.    To write a letter to the Toyota saying about the problem.

2.    I make some brochure to the people see about this problem of the smoke of the cars in the community.

3.    I go one day to the church with my friends and we talk about the smoke.

4.    We can go to a center of treating the air o to a laboratory to more information.

Conclusion

Pollution is the addition to the ecosystem of something which has a detrimental effect on it. One of the most important causes of pollution is the high rate of energy usage by modern, growing populations.

Different kinds of pollution are found:

§       Air Pollution.

§       Water Pollution.

§       Land Pollution.

The Pollution cause effects in:

§       Human health

§       Environment

Rocas y minerales : )

Minerals and rocks

Mineralogy is the science responsible for the identification of minerals and the study of their properties, origin and classification.
The minerals display a wide variedadde colors and structures, including such diverse types as glassy black obsidian, jasper jewelry, diamonds clear, hard and soft, white powder. Minerals are the source of valuable metals, extracted as ores.
Among the minerals are some remaining internal structures geometric patterns. They are called crystals. For its brightness, color and some properties are considered gemstones.
For its part, added a rock is any naturally formed mineral. The term applies to aggregates of different sizes, from the solid rock of the mantle down to the sand and clay.

Sediments and strata: The result of internal activity modifies the surface of planet Earth. These are called "geological agents ...Minerals: Minerals are solid bodies of soil that can appear in many different ways, either separately or as components ...Physical properties of minerals: We can identify minerals by their physical properties, optical, electrical, magnetic and his ... Types of Minerals: The minerals that form the Earth's crust formed from chemical elements that originated the planet ...Crystals and gemstones, minerals may occur in nature, basically, in two ways: without a definite form (amorphous) or with ...Crustal rocks: Rocks are aggregates of different minerals, auque sometimes may consist of a single mineral. Rocks ...Sedimentary and metamorphic rocks: Once the rocks are formed from magma that rises and rises to the surface, may have different ...

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Vocabulary # 7

Rock = a naturally formed solid in the crust , made up of one or more minerals .

The rock are easy to found but not to take up .

igneous rock = a rock formed when melted rock material cools and hardens .

The igneous rock are cooled intrusive o extrusive .

sedimentay rock = a ock made of bits of matter joined together .

The clay is asediment of shale .

fossil = any remains o impint of living things of the past .

Alots of scientits are find and investigate fossils from dinosaries.

metmorphic rock = a rock formed unde heat and pressue from another kind of  rock.

In the process the original ock does not melt under heat and pressure .

humus = decayed plant or animal material in soil .

Humus is decayed plant or animal mateials .

pollution = adding any harmful substance to earth 's land, water. or air .

Pollution means adding any harmful substance to earth ' s

rock cycle = rocks changing fom one form into another in a never - ending series of processes.

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Ttake alot of  year .he rock cycle never end and