уторак, 31. август 2010.

Water

1  Water is everywhere—there are 332,500,000 cubic miles of it on the earth’s surface. But less than 1 percent of it is fresh and accessible, even when you include bottled water.
It is an enormous amount of water.

2  Cheers! The new Water Recovery System on the International Space Station recycles 93 percent of astronauts’ perspiration and urine, turning it back into drinking water
It is kind of good that you can recycle urine into water.

3  You can make your own water by mixing hydrogen and oxygen in a container and adding a spark. Unfortunately, that is the formula that helped destroy the Hindenburg.
It is cool that you can make you own water.

4 Vicious cycle: Water in the stratosphere contributes to the current warming of the earth’s atmosphere. That in turn may increase the severity of tropical cyclones, which throw more water into the stratosphere. That’s the theory, anyway.
I think more water on planet Earth is better.

5 At the other end of the wetness scale, planet GJ 1214b, which orbits a red dwarf star, may be almost entirely water.
I liked this fact because of the fact that there is one planet that is completely covered with water.

Google Facts 
1 97 % of earth’s water is in the oceans. Only 3 % of the earth’s water can be used as drinking water. 75 % of the world’s fresh water is frozen in the polar ice caps.
I found interesting the fact that out of 97 percent of water on Earth only 3 is drinking water.

2 The average person in the United States uses 80 to 100 gallons of water each day. During medieval times a person used only 5 gallons per day.
This fact is intersting because an average person uses 20 times more water than in medivil times.

3 87 % of New Jersey’s population obtains its drinking water from a public water system and 13 % from private residential wells. 
A big amount of water is used from the public water.

4 It takes about 1 gallon of water to process a quarter pound of hamburger. 
So for every quarter pound of Hamburger that is made 1 Gallon is used.  

5 The overall amount of water on our planet has remained the same for two billion years.
This fact is interesting because now we know how much water we have left
 

петак, 27. август 2010.

Going, Going, Gone.

The article I read was called Going, Going, Gone. The article talks about helium how we dont have it more and how we dont use it wisely and that it will run out soon.

Why is this element rare on Earth, yet abundant throughout the Universe? Because it is a very old resource and every day the sun boils on it and then rain. Which would mean it starts evaporating and then there is less and less. So every day is less and less.

What do we need this element for anyway? It is used for balloons, for making the high squeaking voice. It is used to make fill airships fly. The process is done by burning the helium in the balloon and expanding the helium.

What could we do about this problem? We could stop using it on unnecessary things such as ballons and start using it on use full things.

How could this issue happen with other elements? Give examples.It can get used up for not usefull things. So to preserve all gases and chemicals we could stop using it on unneded things.

четвртак, 26. август 2010.

Chemical Reactions

The chemical reaction in this experiment was that the color of the alcohol was yellow and then turned into red color

When the Lithium entered the water it started bubbling and in a second was burned.
The second the cesium entered the water it automatically exploded.
The chemical reaction in this video was when the Potassium entered the water it started spinning in circles. After a while the flames changed color from orange to red.
In this experiment the water was used as a fuse for the Sodium and Potassium. When it entered the sodium started burning and after a while it exploded.
http://www.youtube.com/watch?v=w2mj-Sq2oeo&feature=related
When the nitrogen was poured in the pool it froze the pool the same second it was poured.
http://www.youtube.com/watch?v=5n7kBkBcXgo&NR=1
At first nothing happened after a 20 seconds of the video the it started bubbling. It turned from blue to gray color.
First 20 seconds of the video nothing fascinating appeared. The color of the foam changed when the gummy bear was burned from white to  to black.
http://www.youtube.com/watch?v=-i8UGUN9Czg
In this video the person put the first he added the chlorine Chemical after he added the Brake Fluid. After about 5 seconds it started smoking and then turned into flames.