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Robotz Movie
by: jokester127

Laser Pointers or High Speed Data Links?

In places around the Wi-Fi isn't Allowed because of machinery and other intruments. For an example, A hospital has sensitive machine that cant be disturbed by Wi-Fi and so the way to communicate is a USB 2.0 cable to hook up all the computers. But now a scientist has figured how to send information across 30 feet with out Wi-Fi. Using laser pointers they send information across 30 feet and the data rate is over twice as much as the USB 2.0. Thee set up cost is not that much either because it only costs about $600. The error of the new technology is 1 million or of 500 million bit per second. This may be the beginning of a new era.   http://www.popsci.com/science/article/2012-05/high-speed-data-link-made-laser-pointers-works-where-wi-fi-wont

The States Of Matter

              Chemical build up is the world around us. We know many of relative things in science. Such as, when  ice melt it is called melting. We have aslo learned things like boiling points of different substances and even the freezing point of them as well.

This is a chart on all of the changes. These changes are called Physical changes. These changes change the look of the substance but not the chemical make up. Some examples are melting and freezing (on the chart). Chemical changes are when you disrupt the chemical make up. There are many ways to do this but some of the ways may be  burning, or rust or even grinding. Using these guidelines we did four labs. The first we watch a lit a birthday candle and we witnessed the physical changes. The candle slowly burned causing it to melt. The solid structure is now a liquid. The chemical change is the flame that created by the wax and the oxygen in the air. In the second lab we did the same thing except this time we used a chemical reaction that blew out the flame. My group added baking soda to vinegar. The product of this reaction of the chemical change was  that carbon dioxide released from the beaker. When the flame was surrounded by the carbon, flame died. In the next lab we use marshmellows. The class held the marshmellow to a Burnsen Burner and burnt part of the marshmellow. Afterwards we tried it, the sugar inside tastes more of a burnt piece of food. we learned the marshmellow was affected by the heat (burning as said above) change the chemical make up of the marshmellow. Lastly we took a sugar and put it in a beaker. My group put it over a Burnsen Burner and heated to about 350 degrees fahrenheit and the sugar turn black. Immediately, afterwards the beaker started to smoke and the smoke turned yellow. My teacher broke the beaker and we saw that the only thing in the beaker left was the carbon. the reason this is true is because the chemical make up a sugar is C₆H₁₂O₆  and so the it is water (H₂O) and carbon (C) so the sugar is 6 times carbon and water. When the beaker was heated the water was evaporated, this left the only chemical left carbon. This can help us in many ways in the real world. One way can be this can be used is if the magma in a volcano need to be heated and scienctists fugure out that is hot from physical changes, and the magma turn more into liquids then we know its going to explode.

Separating the Mixture

1.       The first step of separating is to remove the toothpick from the heterogeneous mixture.

2.       Take out the button from the mixture.

3.       Next take a beaker, and put the funnel over it the beaker and put the filter paper in the funnel.

4.       Pour the heterogeneous mixture into the funnel.

5.       Take the left over to and put it in the dish.

6.       Take the magnet and closely and slowly hover it of the leftovers.

7.       Now separate the rock from the sand.

8.       Take the beaker full of water and put it on the heater.

9.       Let the water boil until there is none left. Using the tongs to take the beaker off the heater. The left over mineral is salt.

The seven items in the heterogeneous mixture: salt, small rock, toothpick, button, iron shavings, water, and sand.

Education is the key to unlock the golden door of freedom - Why is this true?

"Education is the key to unlock the golden door of freedom”

            

I think this means that education is the key. Precisely a golden key to the door of your desires is what the quote means. Down in your heart you have a desire, let’s say to be the best baker in the world. The way to get there is education in many subjects such as chemistry. To understand how much water to put in dough you need to understand chemistry. Now if you want to have a good job then studying hard you can earn a bachelor’s degree and with this people will see as a talented and hardworking individual and will be accepted into many jobs across the country. Freedom means that we have no stress to live freely without the worries of bills and other stresses. With money this can be removed from your life, you now opened the doors of freedom with the golden key, education.

Frog and humans
by: krishan12345


The frog is a great specimen. My experience with Joe ( the frog) was very exciting. I learned that the frog was a lot like humans. The digestive system start in the stomach instead of the mouth. Also I learned that the stomach starts chemical and mechanical digestion. Then afterward that food goes to the small intestine to be absorbed. Lastly I learned that the liver was that largest organ in both organ systems.

Something frog that I found interesting was that the liver was the largest organs in both organ systems. I also found that all the eggs in the female frog which were a lot. The eggs was like a protection, that how may there were. Thirdly I found that the frog had two layers of skin and muscles. When I first cut into the frog I found surprising I had to cut two layer to get to the real organs. Lastly the frog  dissection was very educational and taught me so much of my body.