Friday, December 5, 2008

Weather Fronts

Cold fronts are caused when rapidly moving cold air runs into a slow moving warm air front.
Warm Fronts form when a slowly moving warm air mass collides with a slowly moving cold air mass.
Stationary fronts form when warm and cold masses collide but neither of the have enough force to move each other.
A occluded front farms when a warm air mass gets trapped between two cold air masses.

Tuesday, December 2, 2008

Thursday, November 20, 2008

Trip Itinerary and approximate latitude: Harvana,Cuba 25 degrees north to London,England 57 degrees North
Travel time:9 days
Direction traveling:North East
Were you successful?Yes
How many attempts?4
How were you successful? i went below my destination because the wind was blowing down.
What winds did you take advantage of or compete with during your travel?prevailing westerlies

Trip Itinerary and approximate latitude:San Francisco,United States 3h degrees North
Travel time:13 days
Direction traveling:south west
Were you successful?Yes
How many attempts?1
How were you successful?I followed the wind correctly to land me at my destination.
What winds did you take advantage of or compete with during your travel?Trade winds

Trip Itinerary and approximate latitude:Lima,Peru 15 degrees North
Travel time:15 days
Direction traveling:south east
Were you successful?Yes
How many attempts?9
How were you successful?I went up instead of down
What winds did you take advantage of or compete with during your travel?prevailing westerlies




Tuesday, November 4, 2008

Photochemical Smog


Photochemical smog is the brown haze that develops in sunny cities. Photochemical smog is formed by the action of sun light on pollutants such as hydrocarbons and nitrogen oxides.These mixture forms a brownish color.In the troposphere, ozone is a pollutant tht can irritate the eyes,throat,and lungs. Plants and other living things get harmed by this.

Wednesday, October 29, 2008

Earths Atmosphere

Earths atmosphere is very different from the moon and planets with no atmospheres for many reasons.Earths atmosphere makes conditions on earth suitable for living things.This is why we could not live on any other planet that we know of.Earths atmosphere is made up of nitrogen,oxygen,carbon dioxide,water vapor,and many other gases,as well as particles of liquids and solids.Oxygen is the second most abundant gas in earths atmosphere following nitrogen and is the reason we can breath on earth.The atmosphere keeps most of the earths surface warm by trapping energy from the sun.It also protects living things from dangerous radiation from the sun.Earths atmosphere also protects the earth from being hit by most meteoroids and rocks from outer space.

Wednesday, October 1, 2008

Space Exploration

The Science of Rockets
The most common type of rocket is the atlas rocket.The atlas is most commonly used to launch things into space.Te atlas rocket uses liquid and soiled fuel boosters.The most recent use of the atlas rocket is to launch satellites into orbit for government and commercial purposes.

The Space Program
NASA was invented to explore space.The first NASA mission was to see if humans could survive in space.Apollo 13 was launched on April 11 1970 it looked like it would be the smoothest flight but the whole thing went wrong but they made it back safely home.Since 1972 three ships went to the moon unmanned they took pictures and gave us new information.

Exploring Space To Day
A personal satellite is a little robot that follows astronauts out side the space station.It is small so it can fit in the tightest working station.this is equipped with the latest technology and can alert the astronauts to any problem.

Using Space Science on Earth
The space program takes less than 1% of the US governments funding.For every 1 dollar invested in the space program the economy gets 7 dollars in return.Some people think we should no longer fund the space program.But NASA provides a better understanding of space.The space program also supports many jobs.

Sunday, September 21, 2008

The cause of the seasons.

Most people have the wrong idea of what causes the seasons but here right now i am going to tell you what really causes the seasons. The seasons are caused by the revolving and rotating of the earth. As the earth revolves around the sun the angle of the suns rays change upon the earth. During the summer time in North America the suns rays are more direct on it thats why it is hotter in the summer than the winter. In the winter in North America the suns rays are more direct on somewhere else on the planet. How ever that is the cause of the seasons.

Get a Voki now!

Tuesday, September 16, 2008

ZOOOOOOOOOOOOOOOOM

The book zoom was a very interesting book you would think you saw one thing then in would end up it was not what I thought it was.The book of zoom was a book with only pictures.The pictures would have a picture then the next page would be a zoomed out image of the last picture before it.When I saw the first picture i was pretty sure i knew what it was and then it would zoom out and it turned out i was completely wrong. So from there on i would look for hints to tell what it was really a picture of.This is a scientific skilled called inferring.

Every one has a different thought of what the picture is this is perspective.Each person has there own perspective it just depends on the persons mind and the way you look at it.To be a good scientist you have to have many perspectives.You also have to have a great imagination.

Scientists have to have many skills to be successful scientist.Scientists have to be very observant. they have to include sharp details and they have record the object they are observings every move.They have to especially when doing astronomy.

Monday, September 8, 2008

enigma box

Skilled scientists use certain skills to note the natural. First of all they observe by using there senses to note. Scientists also use inferring and predicting. A couple of other important skills are classifying or grouping and making models. Scientists make models to help people and them selves to understand.
The enigma box is a long black with a big whole on the top and also a tiny whole.The box has a rubber tube coming out the bottom of it.The box is a size that could fit a lot of gadgets in it.When you pour water into it the water does not come out till you pour 470ml of water into it.This box to me is very interesting to me,but i do have some ideas about it.
I have many ideas about the box but my strongest one is the one i am about to tell you.I think there is a slanted piece of plastic cutting the box in half but leaving a gap at the top.So when the water fills up on one side it will fill out the top and pour over the gap and come out the bottom tube.Then the left over pressure will push out the rest of the water.
It ends up i was wrong but i am going to tell you how it works. The water that gets poured into the big whole on the top goes into a plastic tube.This tube curves in the box.When the water is poured into the tube it does not come out until the water reaches the full height of the tube then it starts coming out.Then the rest of the water is pushed up and out of the tube by pressure.There is never enough pressure to push up all the water so you will always have left over water.As you can see this simple little enigma box is not so simple but very interesting.