I know, I'm so mean for giving an assignment over break, but hey, that's what I do. I can't just let you sit around and not think about science for 10 days in a row.
Pangaea is the supercontinent that existed in the Paleozoic and Mesozoic eras about 250 millions years ago. This is the theory by Alfred Wegener. He hypothesizes that Europe, Asia, North America, South America, Australia, and Africa and, Antarctica was all connected to each other which created Pangaea.
There are many continents that were broken by the breakup of Pangaea. The reason why Pangaea broke up is because the ocean floor spread them into the 7 major continents we know today.
Fossil evidence for Pangaea includes the presence of similar and identical species on continents that are now great distances apart. For example, fossils of the therapsid Lystrosaurus have been found in Gandu, South Africa, India and Australia, alongside members of the Glossopteris flora, whose distribution would have ranged from the polar circle to the equator if the continents had been in their present position; similarly, the freshwater reptile Mesosaurus has only been found in localized regions of the coasts of Brazil and West Africa. Additional evidence for Pangaea is found in the geology of adjacent continents, including matching geological trends between the eastern coast of South America and the western coast of Africa.
A volcano is a geological landform usually generated by the eruption through a vent in a planet's surface of magma. A volcano is an opening, or rupture, in a planet's surface or crust, which allows hot, molten rock, ash, and gases to escape from below the surface. Volcanic activity involving the extrusion of rock tends to form mountains or features like mountains over a period of time. Volcanoes are generally found where tectonic plates are diverging or converging.
Fruit and vegetables should be incorporated into every meal, as well as being the first choice for a snack. Population studies have shown that people who eat a lot of fruit and vegetables may have a lower risk of chronic disease, such as heart disease and some cancers. Health benefits can be gained from fresh, tinned (in natural juice), frozen, cooked, juiced or dried versions. Potatoes don't count though, as they're a starchy food. Some fruits contain many of their nutrients just under the skin, so eating them with the skin on can provide greater nutritional benefits and the maximum amount of fibre compared with just drinking the juice of the same fruit. Why are they important? Fruit and vegetables of differing colours contain diverse mixtures of phytonutrients (protective plant compounds). These can act as powerful antioxidants, protecting the body from harmful free radicals and helping to protect against certain chronic diseases such as cancer. Some fruit and vegetables are labelled as 'superfoods' because they contain high concentrations of some phytonutrients, particularly antioxidants, which appear to be beneficial to health. But variety is the key. In addition to these phytonutrients, each variety of fruit and vegetables contains its own combination of vitamins, minerals and fibre. Choosing a variety throughout the day will provide a diverse package of essential nutrients. Yes, I do agree that fruit and vegetables are a great source of nutrients and vital for a healthy diet. But we, teenagers, it’s difficult for us to eat it every day. In my concern, I prefer eating a sandwich or cookies with a soda in stead of a fruit!!!!!
Think about what you had for lunch: Was it a hamburger? A chicken sandwich? Barbecue? What about vegetables? Would it surprise you to learn that what you eat can affect the whole planet?
It can — in a big way. Last week, scientists attending the American Association for the Advancement of Science meeting in Chicago presented new studies showing how food and its production affect the globe and its warming climate. The researchers had some bad news for meat-eaters (which is good news for cows!). They also offered some suggestions for how to eat in a more environmentally friendly way.
You’ve probably heard of global warming: For many years, scientists have warned that our planet is getting warmer. If current trends continue, then animals may start to die off and life could get very difficult for everyone. The temperature is on the rise because for more than a century, human kind has been releasing massive amounts of gases into the atmosphere, called “greenhouse gases.” These gases surround the planet and keep heat from escaping the atmosphere. You can think of them as a blanket for the Earth that traps heat. One of these greenhouse gases is carbon dioxide.
What does this have to do with food? A big chunk of the carbon dioxide that we put in the atmosphere every year comes from the process of making and eating food, the scientists reported in Chicago. The production of meat contributes a lot of that carbon dioxide. And much of meat’s contribution comes from beef, which is responsible for releasing even more warming gases into the atmosphere.
The process of making a hamburger, for example, requires a lot of energy. A cow has to be fed and raised on farmland, and cow manure is a major source of methane — an especially potent greenhouse gas. The cow has to be slaughtered. The meat has to be processed and shipped to a consumer, which takes fuel. Most of the cow won’t even be used for meat that people eat.
By the time a hamburger finally lands on a dinner plate, it has taken a heavy toll on the environment. According to Ulf Sonesson of the Swedish Institute for Food and Biotechnology in Goteborg, Sweden, the process of making a one half-pound all-beef burger adds the equivalent (made up of other greenhouse gases) of about 19 times that hamburger’s weight in carbon dioxide.
The message from the research is clear: We can drastically reduce the production of global-warming gases by eating less beef. (That’s healthier, too, since Americans eat twice as much beef as is advised by the U.S. Department of Agriculture.) Other kinds of meat like pork and chicken do less harm to the environment — at least in terms of the amount of greenhouse gases released. Nathan Pelletier, a scientist Dalhousie University in Canada, reported that if everyone in industrial countries (like the United States) substituted chicken for beef, we would cut meat’s contribution in these countries to the greenhouse warming of Earth’s air by more than half.
All kinds of meat, the scientists reported, are harder on the planet than vegetables. To grow and eat a pound of potatoes, for example, sends less than one quarter-pound of carbon dioxide or equivalent warming gases into the air. So shifting our diet to less meat and more vegetables, as it turns out, may do the world some good.
Rainbows A rainbow is a optical and meteorological phenomenon. Meteorological science is the study of atmosphere that focuses on weather. This causes a spectrum of light to appear in the sky when the sun shines onto moisture in the earths atmosphere. The rainbow is the shape of an arc, the color red is on the outer part of the rainbow. The violet color is on the inner part.
I think this article is important because if you are driving and you see a rainbow you should know why it happened and what caused it. It is cooler if you know why it was caused and exactly what it is.
Yes, i do agree with this article, I do think this is how it was caused. So know of you are driving and you see a giant colorful thing then you know that it is a rainbow and you know how it was caused. You usually can't see the ends of the rainbow but if your lucky you do.
Tattoos A tattoo is a permanent marking on the skin made by inserting ink into layers of the skin to change the pigment for decorative or other reasons. Tattoos on humans are a type of decorative body modification, while tattoos on animals are mostly used for identification or branding. Tattooing has been practiced worldwide. The Ainu people, the indigenous people of Japan, traditionally wore facial tattoos. Tattooing was widespread among the polynesian peoples and among certain tribal groups in the Philippines, Borneo, Mentawai islands, Africa, North America, South America, Mesoamerica, Europe, Japan, Cambodia, New Zealand and Microasia. Tattoos are important to some people because they want to show their religion or they just want something decorative on their body. They also sometimes get tattoos because they want to show who they love and that they won't ever give that person up. Some people get tattoos when they are young and regret it when they are older. It is important to think about what you are getting before you get it because it will be stuck with you for the rest of your life. You can get a tattoo taken off, but it is very painful. Yes I agree with this article because it talks about the history of tattoos, what continents in the world, and what places use tattoos. It also talks about how some people get the same certain tattoos if they are in certain tribes or cults. It also says why some animals get tattoos, for branding, and identification to show what farm they are from, or what place.
GEYSER A geyser is a certain type of hot spring, and geysers erupt occasionally by spraying water into the air. For a geyser to exist there must me 3 major things. There has to be plenty of water, tons of heat, and a certain kind of plumbing. In order for there to be water getting thrown into the air the plumbing has to be water, and pressure tight. For geysers, there is groundwater that circulates and gets heated by the rocks below, then moves by convection to the surface. Convection is the process of heating, rising, cooling, then sinking. But for geysers, there certain plumbing makes it so heat doesn't scape from the water which causes the water to reach higher then boiling point. When the water gets to such an extreme temperature point there are too many large bubbles that can't fit through cracks so they start to lift the water. This causes the geyser to overflow, then there are tons of amounts of steam, forcing the water explosively out of the vent and it's very hot, then eruption!
I agree with this article, i do think that geysers are extremely hot. They also shoot up from the ground, and judging by how powerful the water is that shoots up, it might be able to lift a car! So, yes i do agree with this article.
I think this article is also important because it is important to know what causes a geyser and how hot and powerful it actually is. You might actually be able to see this rare and unusual sight one day!
Meryem Bousfiha: (Love is a lie) Contrary To Widely Held Beliefs, Romance Can Last In Long-term Relationships, Say Researchers Scientist have found that romantic love can last in a long relashionship! Therefor Romantic love can last longer, and is healthier and happier. "Romantic love is not like passionate love, omantic love has the intensity, engagement and sexual chemistry that passionate love has, minus the obsessive component", said a scientist.. Passionate or obsessive love includes feelings of uncertainty and anxiety. That kind of love helps short relashionships he added. After doing experiment with other relashionships, they found out that romantic love satisfy both long and short relashionships.
I dont really care about this now, I dont want to have any boyfriend (FOR NOW)!! :P hehe!! But though, I dont really believe in this because I dont believe in LOVE!! It doesnt exist,, it was just developed by humans!! =) I think its just a theorie, and we just develop it! I think that love is an excuse to get hurt and to hurt others. And it was developed to make life more important or with a cause... Hehe Im weird! =)So stupid humans make up lies, or they just think that they are in love while they arent!! So humans stop lying to youselfs, love doesnt exist!
Research has shown that treating children who have Attention Deficit Hyperactivity Disorder (ADHD) with drugs is not effective in the long-term. After three years of treatment, drugs such as Ritalin and Concerta work no better than therapy.
Long-term use of the drugs can also stunt children's growth, and the benefits of the drugs have been exaggerated.
drugs are not always the answer . its is very bad to use drugs .they are unhealthy and cause very bad dammage in ur system. some teenagers think it is cool to show off by talking drugs like rittalin. i think drugs should be illegal only if u are really need them
my article is aboute benjamin franklin, he was the scientist that invented electricity and the way thaqt when hi dicovered it was by accident because he was holding a kite with a key on it and then he got shoted by electricity and there he published it.
my article is aboute newton he was the one that discovered the gravity and the way that he discovered is that one day he was simply sitting on the floor and a tree was on his top and then on apple falls down from it and that mades him to think and then he published his thought BY:MEHDI Z
11 comments:
Pangaea by:mohamed
Pangaea is the supercontinent that existed in the Paleozoic and Mesozoic eras about 250 millions years ago. This is the theory by Alfred Wegener. He hypothesizes that Europe, Asia, North America, South America, Australia, and Africa and, Antarctica was all connected to each other which created Pangaea.
There are many continents that were broken by the breakup of Pangaea. The reason why Pangaea broke up is because the ocean floor spread them into the 7 major continents we know today.
Fossil evidence for Pangaea includes the presence of similar and identical species on continents that are now great distances apart. For example, fossils of the therapsid Lystrosaurus have been found in Gandu, South Africa, India and Australia, alongside members of the Glossopteris flora, whose distribution would have ranged from the polar circle to the equator if the continents had been in their present position; similarly, the freshwater reptile Mesosaurus has only been found in localized regions of the coasts of Brazil and West Africa.
Additional evidence for Pangaea is found in the geology of adjacent continents, including matching geological trends between the eastern coast of South America and the western coast of Africa.
volcano.
by:hatim mrabet
A volcano is a geological landform usually generated by the eruption through a vent in a planet's surface of magma.
A volcano is an opening, or rupture, in a planet's surface or crust, which allows hot, molten rock, ash, and gases to escape from below the surface. Volcanic activity involving the extrusion of rock tends to form mountains or features like mountains over a period of time.
Volcanoes are generally found where tectonic plates are diverging or converging.
Are you getting your five portions a day?
Fruit and vegetables should be incorporated into every meal, as well as being the first choice for a snack. Population studies have shown that people who eat a lot of fruit and vegetables may have a lower risk of chronic disease, such as heart disease and some cancers. Health benefits can be gained from fresh, tinned (in natural juice), frozen, cooked, juiced or dried versions. Potatoes don't count though, as they're a starchy food.
Some fruits contain many of their nutrients just under the skin, so eating them with the skin on can provide greater nutritional benefits and the maximum amount of fibre compared with just drinking the juice of the same fruit.
Why are they important?
Fruit and vegetables of differing colours contain diverse mixtures of phytonutrients (protective plant compounds). These can act as powerful antioxidants, protecting the body from harmful free radicals and helping to protect against certain chronic diseases such as cancer. Some fruit and vegetables are labelled as 'superfoods' because they contain high concentrations of some phytonutrients, particularly antioxidants, which appear to be beneficial to health.
But variety is the key. In addition to these phytonutrients, each variety of fruit and vegetables contains its own combination of vitamins, minerals and fibre. Choosing a variety throughout the day will provide a diverse package of essential nutrients.
Yes, I do agree that fruit and vegetables are a great source of nutrients and vital for a healthy diet. But we, teenagers, it’s difficult for us to eat it every day. In my concern, I prefer eating a sandwich or cookies with a soda in stead of a fruit!!!!!
Mehdi.S
Think about what you had for lunch: Was it a hamburger? A chicken sandwich? Barbecue? What about vegetables? Would it surprise you to learn that what you eat can affect the whole planet?
It can — in a big way. Last week, scientists attending the American Association for the Advancement of Science meeting in Chicago presented new studies showing how food and its production affect the globe and its warming climate. The researchers had some bad news for meat-eaters (which is good news for cows!). They also offered some suggestions for how to eat in a more environmentally friendly way.
You’ve probably heard of global warming: For many years, scientists have warned that our planet is getting warmer. If current trends continue, then animals may start to die off and life could get very difficult for everyone. The temperature is on the rise because for more than a century, human kind has been releasing massive amounts of gases into the atmosphere, called “greenhouse gases.” These gases surround the planet and keep heat from escaping the atmosphere. You can think of them as a blanket for the Earth that traps heat. One of these greenhouse gases is carbon dioxide.
What does this have to do with food? A big chunk of the carbon dioxide that we put in the atmosphere every year comes from the process of making and eating food, the scientists reported in Chicago. The production of meat contributes a lot of that carbon dioxide. And much of meat’s contribution comes from beef, which is responsible for releasing even more warming gases into the atmosphere.
The process of making a hamburger, for example, requires a lot of energy. A cow has to be fed and raised on farmland, and cow manure is a major source of methane — an especially potent greenhouse gas. The cow has to be slaughtered. The meat has to be processed and shipped to a consumer, which takes fuel. Most of the cow won’t even be used for meat that people eat.
By the time a hamburger finally lands on a dinner plate, it has taken a heavy toll on the environment. According to Ulf Sonesson of the Swedish Institute for Food and Biotechnology in Goteborg, Sweden, the process of making a one half-pound all-beef burger adds the equivalent (made up of other greenhouse gases) of about 19 times that hamburger’s weight in carbon dioxide.
The message from the research is clear: We can drastically reduce the production of global-warming gases by eating less beef. (That’s healthier, too, since Americans eat twice as much beef as is advised by the U.S. Department of Agriculture.) Other kinds of meat like pork and chicken do less harm to the environment — at least in terms of the amount of greenhouse gases released. Nathan Pelletier, a scientist Dalhousie University in Canada, reported that if everyone in industrial countries (like the United States) substituted chicken for beef, we would cut meat’s contribution in these countries to the greenhouse warming of Earth’s air by more than half.
All kinds of meat, the scientists reported, are harder on the planet than vegetables. To grow and eat a pound of potatoes, for example, sends less than one quarter-pound of carbon dioxide or equivalent warming gases into the air. So shifting our diet to less meat and more vegetables, as it turns out, may do the world some good.
Rainbows
A rainbow is a optical and meteorological phenomenon. Meteorological science is the study of atmosphere that focuses on weather. This causes a spectrum of light to appear in the sky when the sun shines onto moisture in the earths atmosphere. The rainbow is the shape of an arc, the color red is on the outer part of the rainbow. The violet color is on the inner part.
I think this article is important because if you are driving and you see a rainbow you should know why it happened and what caused it. It is cooler if you know why it was caused and exactly what it is.
Yes, i do agree with this article, I do think this is how it was caused. So know of you are driving and you see a giant colorful thing then you know that it is a rainbow and you know how it was caused. You usually can't see the ends of the rainbow but if your lucky you do.
Link:http://en.wikipedia.org/wiki/Rainbow
Tattoos
A tattoo is a permanent marking on the skin made by inserting ink into layers of the skin to change the pigment for decorative or other reasons. Tattoos on humans are a type of decorative body modification, while tattoos on animals are mostly used for identification or branding. Tattooing has been practiced worldwide. The Ainu people, the indigenous people of Japan, traditionally wore facial tattoos. Tattooing was widespread among the polynesian peoples and among certain tribal groups in the Philippines, Borneo, Mentawai islands, Africa, North America, South America, Mesoamerica, Europe, Japan, Cambodia, New Zealand and Microasia.
Tattoos are important to some people because they want to show their religion or they just want something decorative on their body. They also sometimes get tattoos because they want to show who they love and that they won't ever give that person up. Some people get tattoos when they are young and regret it when they are older. It is important to think about what you are getting before you get it because it will be stuck with you for the rest of your life. You can get a tattoo taken off, but it is very painful.
Yes I agree with this article because it talks about the history of tattoos, what continents in the world, and what places use tattoos. It also talks about how some people get the same certain tattoos if they are in certain tribes or cults. It also says why some animals get tattoos, for branding, and identification to show what farm they are from, or what place.
GEYSER
A geyser is a certain type of hot spring, and geysers erupt occasionally by spraying water into the air. For a geyser to exist there must me 3 major things. There has to be plenty of water, tons of heat, and a certain kind of plumbing. In order for there to be water getting thrown into the air the plumbing has to be water, and pressure tight. For geysers, there is groundwater that circulates and gets heated by the rocks below, then moves by convection to the surface. Convection is the process of heating, rising, cooling, then sinking. But for geysers, there certain plumbing makes it so heat doesn't scape from the water which causes the water to reach higher then boiling point. When the water gets to such an extreme temperature point there are too many large bubbles that can't fit through cracks so they start to lift the water. This causes the geyser to overflow, then there are tons of amounts of steam, forcing the water explosively out of the vent and it's very hot, then eruption!
I agree with this article, i do think that geysers are extremely hot. They also shoot up from the ground, and judging by how powerful the water is that shoots up, it might be able to lift a car! So, yes i do agree with this article.
I think this article is also important because it is important to know what causes a geyser and how hot and powerful it actually is. You might actually be able to see this rare and unusual sight one day!
LINK:http://www.uweb.ucsb.edu/~glennon/geysers/
LINK:http://www.hanksville.org/daniel/geology/geysers.html
Meryem Bousfiha: (Love is a lie)
Contrary To Widely Held Beliefs, Romance Can Last In Long-term Relationships, Say Researchers
Scientist have found that romantic love can last in a long relashionship! Therefor Romantic love can last longer, and is healthier and happier. "Romantic love is not like passionate love, omantic love has the intensity, engagement and sexual chemistry that passionate love has, minus the obsessive component", said a scientist.. Passionate or obsessive love includes feelings of uncertainty and anxiety. That kind of love helps short relashionships he added. After doing experiment with other relashionships, they found out that romantic love satisfy both long and short relashionships.
I dont really care about this now, I dont want to have any boyfriend (FOR NOW)!! :P hehe!! But though, I dont really believe in this because I dont believe in LOVE!! It doesnt exist,, it was just developed by humans!! =) I think its just a theorie, and we just develop it! I think that love is an excuse to get hurt and to hurt others. And it was developed to make life more important or with a cause... Hehe Im weird! =)So stupid humans make up lies, or they just think that they are in love while they arent!! So humans stop lying to youselfs, love doesnt exist!
this is for march 23rd
Research has shown that treating children who have Attention Deficit Hyperactivity Disorder (ADHD) with drugs is not effective in the long-term. After three years of treatment, drugs such as Ritalin and Concerta work no better than therapy.
Long-term use of the drugs can also stunt children's growth, and the benefits of the drugs have been exaggerated.
drugs are not always the answer . its is very bad to use drugs .they are unhealthy and cause very bad dammage in ur system. some teenagers think it is cool to show off by talking drugs like rittalin.
i think drugs should be illegal only if u are really need them
my article is aboute benjamin franklin, he was the scientist that invented electricity and the way thaqt when hi dicovered it was by accident because he was holding a kite with a key on it and then he got shoted by electricity and there he published it.
by: mehdi z
my article is aboute newton he was the one that discovered the gravity and the way that he discovered is that one day he was simply sitting on the floor and a tree was on his top and then on apple falls down from it and that mades him to think and then he published his thought
BY:MEHDI Z
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