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Oxford Launches New Hunt for Yeti DNA Samples

The Oxford University cryzptology department is looking samples of yeti DNA. Cryzptology is the study of animals whose existence has not yet been proven. The yeti could be an unknown primate species or a sub-species of bears. The yeti is a legend as old as Mount Everest and everyone is eager to find out if it is true. Mainstream science is not convinced that the yeti exists because there is no soild evidence. There are some DNA samples have been found but it is not known what species they are from.
FULL ARTICLE


I found this article to be very interesting. I wondered if the yeti was real when i was as a little kid. I was even scared of the yeti for a while. It would also be very interesting to see if the yeti exists because then there might be other species like the yeti. If the yeti is proved real it would be a big boost to crzyptology and we might discover even more creatures that were once thought to be mythical.
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New Plastic Bleeds Red When Scratched, Then Heals Itself Like Skin

 Self-healing materials will eventually fix anything from cell phones to car fenders. This will enable these items to heal themselves on their own. This new plastic bleeds red when "wounded", and then heals itself like trees or human skin. Self-healing materials is the biggest current research in the area of material science. The capsules that "bleed" when they break open will stimulate the plastic and it regrow its chemical bonds. This plastic is made from a water based polymer which is more environmentally friendly than other polymers. Unlike other self healing plastics this one can heal itself over and over again. This would help improve safety because it would draw attention to structural weaknesses.
Full Article

I think that this article is very fascinating. Now when ever we drop our Ipod or phone it will be able to fix itself. Finally no more cracks or chips in things, they will now "bleed" and fix itself. I think that these plastics will be very beneficial to us, now one day we may never have to get new things. Hopefully in the future everything will be made out of a material like this. Since nothing will ever break we will never have to throw them away we will never waste again.

Labs

This past week in class we have done many different labs. These labs included observing a candle, pouring a gas, marshmallow fun, and observing change in matter. The first lab, burning a candle, was to help us understand chemical changes. When we lit the candle on fire the flame reacted with the candle. We knew this was a chemical change because the two elements formed a new element, smoke.
   BURNING CANDLE PHOTO
 Next the lab, pouring a gas, was another chemical change lab also. It showed us how alka seltzer reacted with water to form CO2. We then poured it onto the flame so we could see how a flame needs oxygen to burn and not CO2.
  POURING CO2 PHOTO
Our third lab was called marshmallow fun. This also showed us a chemical change while having fun. When put in the flame the sugar in the marshmallow burned and left a bitter taste. We also got to eat the marshmallows when we were done, so it was pretty fun.
      BURNT MARSHMALLOW PHOTO
Our final lab was observing change in matter. This showed us both physical and chemical change. First we crushed a sugar cube and let it dissolve in water. We knew that this was a physical change because we could still taste that the sugar was present. Finally we burned sugar over a bunson burner. When we finished burning the sugar we knew that it was a chemical change by 1) the new product that we got was CO2 and 2) it definitely didn't taste like sugar anymore.
   BURNT SUGAR PHOTO

In science class we had to seperate these seven things while they were in a cup, and then right out our  procedure.                                       
Items:                                              Tools:
salt                                                  scissor like grabber
water                                               magnet 
tooth picks                                        spoon  
beans                                               filter 
metal filings                                      graduated  cylinder
sand                                                 beaker
clear oval rock                                  hotplate

Procedure: First we took the scissor like grabber and removed the tooth picks. Then we used the magnet and removed all of the metal filings. Next we used the spoon to remove the beans and clear oval rock. After that we poured the water onto the filter and into the beaker, so we seperated the salt water from the sand. Finally we used the hotplate to evaporate the water and seperate the salt.

metal filings on magnet      graduated cylinder                                      hot plate                     

Fog Dissection

In class we had been studying all of the life systems. At first  we learned the function of each system, and then we learned how they are all connected. To better to understand how all of the systems are connected, we dissected a frog. We dissected frogs because  their organ structure is very similar to humans. This was very helpful because it really helped me see how everything is connected. I could really see how the organs are all connected to each other, and how they work together. I could tell how if one system failed all would stop working. For example if the digestive system stopped working then the rest of the body wouldn't get nutrients and all of the systems would fail. It also helped show the location of the organs in the body. This lab was very helpful and it helped me better understand the organ systems, their functions, and how they are all connected.
More information
Virtual Dissection
Frog Organs Picture
Human Organs Picture

Chicken Wing Dissection

In sccience we watched our teacher dissect a chicken wing to show us the different kinds of tissue. The four different types of tissue that we learned about are epithelial which covers and protects, muscle which make your body move, connective which support and protect, and nervous which send commands from your brain to other parts of your body. Epithelial tissue found in the chicken was the skin, because it covers and protects the cell. Muscle tissue was the triceps and biceps because, they make the wing move. Connective tissue was the bones, because they supported the wing. Nervous tissue was the nerves in the wing, because it gave messages from the brain to the wing. This was a fun lab to watch and helped me better understand the different types of tissue.