Space+Matias,+Marco,+Ricardo

Space

notes • sun oxygen heat and light plants grow food • When the sun ´s light is very strong every days in an specific place they put solar panels • The sun gives us light by its electricity and we need electricity to live because if not we couldn’t see at night. • The sun makes us live by its heat and it doesn’t makes us dye from the cold • The sun makes us clean water by evaporating a little bit of water from the ocean with its heat to clean it and drop it in the rivers • The sun makes the earth move around it by changing seasons

• The sun ´s magnetic storms make the communications by cell phones fail • The huge wave of heat make people die by the heat

• The high amount of uv rays gets to our skins giving us a skin cancer

• Each year the sun ´s heat is getting higher leaving poor polar bears at the north pole without home and the people that live there will not get to eat nothing • Fact: (In 2005 a million of birds in the pole left their nest and home because it´s food didn’t arrived on time) • There is a theory about the sun ´s age they say that the sun is about 4.5 billion years and its in its half life so in another 4.5 billion years the sun will explode making a black hole that will suck all the planets in the solar system

Notes12, 13, 11
 * The energy of the sun reaches the earth as a visible electronic radiation like UV rays
 * UV rays A is made of wave lengths 320 to 400 nanometers
 * UV rays B is wave lengths are 280 to 320 nm of length
 * UV rays C is wave lengths are 100 to 280 nm of length
 * The atmosphere absorbs some of the UV rays
 * UV rays A and B pass the atmosphere and UV rays C doesn't pass the atmosphere because they don't have enough wave length
 * UV rays B cause much greater risk of getting skin cancer than UV rays A
 * UV rays A also causes damage by increasing the effect of UV rays B
 * In most cases UV rays react with a chemical called melanin that's found in the skin
 * The melanin is the first defense of the sun
 * The melanin absorbs some of the UV rays that can cause serious skin damage
 * A sunburn is created when the amount of UV rays exceeds the protection that the melanin provides
 * UV rays damage the DNA the genetic material that make up genes
 * Genes control the growth and overall health of skin cells
 * If the sunburn is severe normal skin cells may began to grow uncontrolled
 * Some cases of skin cancer can be hereditary and run in families. In those cases skin cancer is caused by abnormal genes
 * UV rays A is a long wave of electronic radiation
 * UV rays B is a short wave of electronic radiation
 * Melanoma is one of the most common cancer among adolescents and adults from ages 15 to 29
 * Particularly during childhood there are risk of having sunburns that can cause melanoma
 * Non-melanoma is another skin cancer that is less deadly than melanoma
 * Non-melanoma can spread if left untreated
 * Between 40% and 50% of americans who live to age 65 will have one of these skin cancers at least once

notes12, 12, 11 >  sources www.stmary.ws/highschool/phiysics/uv_1.htm 12, 12 www.wisegeek.com/what-are-uv-rays.htm 12, 12 The information that is below me doesnt matter jet UV rays
 * uv rays created man pass electricity gas vapor mercury
 * uv rays invisible rays are part sun
 * Uv rays burn hair, eyes, skin if not good protection, to much sun
 * one burn eyes to much ocean reflect next cant see
 * skin cancer
 * cancer sunburn blood rush sunburn cool down damage skin peels away burning pain cause skin cancer
 * common effect sun burn
 * sun burn when damage skin cells obsore much energy uv

**What are uv rays?**
UV rays can be created by man if you pass electricity thruogh gas vpor like mercury vapor (who is talk iam marco I cant type I need to find a lot of information and it's to long - I dont understand Matias) What stands for UV rays it stands for ultra violet rays UV rays are invisible rays that are part of the sun

negative UV rays burn eyes, hair, and skin. How does it burn eyes, hair, and skin? One way that it burns the eye is when you`ve

positive

**The Suns UV Ray** **Topic** Why are the UV rays getting stronger? **Main Idea** I investigated how UV rays affect theatmosphere the earth and humans. The median temperature of the earth has increase 0.5º C in the last century. Each time the UV rays are getting stronger because UV rays bounce in the green house gasses and keep bouncing. That’s one way they are getting stronger. **What are the UV RAYS?** The UV rays are rays that are invisible for humans, but for bees not. The rays have heat and that is what keeps the earth warm. Another thing that the rays do is the sun burns.

**What are the Green House Gases?** The green house gases are water vapor, methane, carbon dioxide, nitrous oxide, pollution, etc. All this types of liquids and gases are together in the atmosphere called the green house gases. The green house gases are estimated that the temperature will go up between 1º to 4º C in 100 years. **The good thing about Green House Gases** The ozone layer is a layer that prevents too much heat reaching the earth, but he UV rays are bouncing and the bouncing is making the ozone layer disappear. The green house gases are lots airs together making a layer of the atmosphere. Before green house gases existed, the earth was good because the UV rays came to earth and some go to space because of the reflection from the clouds. Others passed the clouds and the earth absorbed the heat to keep the earth warm.

**The bad Green house gases** Now the green house gases do the same but when the UV rays want to go out they bounce with the green house gases and keep bouncing. Some UV rays get to go out but most stay bouncing all the time. One thing that is good from the green house gases is that keeps the planet in 57º F (14º) that is the average of the whole world planet seasons. **A way to stop the green house effect** If we still keep polluting the green house gas average will go up 1º up. We can stop it by recycling, doing car pool, etc. Stop using plastic things that can’t be recycled. If we recycle then there will not be so powerful UV rays so you won’t need to use a hat or sun screen **If we don’t stop the green house effect** If we don’t stop the green house effect there could be lots of problems. Some things that can happen are ocean warm, ice berg melting, fierce hurricanes, animals and plants die because they can’t adapt fast to the place, the temperature changes, and human’s suffer too, but these are not the only ways the planet can change there are a lot of more ways the earth could change. Another thing is that if we don’t stop the green house gases when we go out of our house we will need to use sun screen or hat because if not we cloud have skin cancer like melanoma and more. **Sources:** **Websites:** Net Trekker: Green house gases 23, 11, 11 Net trekker: The problem with the green house gases 13, 11, 11 The Ozone layer, depletion and UV radiation http:www.eco-action.org/dt 11, 11, 11 **Books:** This is my planet 23, 11, 11 The down-to-earth guide to global warming Author: Laurie David 21, 11, 11 Green house gases 20, 11, 11 **Pictures:** [] 24, 11, 11 [] 25, 11, 11 [] 25, 11, 11 [] 25, 11, 11 [] 26, 11, 11 [] 25, 11, 11