Amazing Sharks

Site: http://www.factmonster.com/spot/sharks2.html

Sharks are highly misunderstood creatures.Sharks are fish,but are different from the fish we know.A shark's skeleton is made of cartilage,which is a type of flexible but strong tissue.Likewise, sharks have extremely sensitive hearing.They can hear more than 700 feet away.Moreover,sharks ancestors may have lived more than 400 million years ago.Smell is the most remarkable of all the shark senses.These remarkably creatures can smell prey up to a mile away.Scientits think that sharks probably follow a trail of microscopic particles of protein from the prey or it's blood.Sharks have their pups in differnt ways.Some lay egg cases and others' give birth to live young.

However,when the pup is born it is on its own from the start with no mother's care like most other animals.Therefore,most sharks have four tows of teeth.They do not chew,but they use powerful teeth to bite and tear their food.Most people think sharks pose a great danger to humans,but humans pose a greater danger to sharks.Fishermen kill 30 million to 100 million sharks every year.All in all,the aquarium featured most of the well known sharks like a great white,and a hammerhead.I did not see any of their habits but I did see the teeth and how sharp they were.

Artic Melt Season Getting Longer

http://http://www.phschool.com/science/planetdiary/archive10/atmo1031510.html

With all the news going around about global warming,it comes to no surprise that the melt season in the artic is growing longer.Every year,a few of the sea ice melts in the summer and refreezes in the winter. Now a new NASA study shows the melt season is starting earlier and lasting longer.Usually the melt season starts the day in spring when ice stops frezing and melting is continous. The season ends when when the ice begins to freeze again.Furthemore,data shows the melt season increased,on average,more than six days per decade.These changes are most dramatic along ice pack edges at the lower latitudes.There, the melt season is as much as 40 days longer per decade. The changes in the melt season are accelerating because melting itself leads to more melting.Likewise, dark ocean water absorbs more solor energy than mirror-like ice.Therefore, an earlier melt season allows ocean water to soak up heat for a longer time,the extra heat delays refreezing,Moreover, I think that this article gives a sense of realizm as to what is happing to the ice in the much colder regions,yet cant this not be part of how the earth works?Greenhouse gases effect this rapid change, but can't the earth make its own defence mecanisim in order to protects itself?.Animals change the way they live to go along with the changes in their enviroment.Even though earth is not alive is has been changing for many milleniues.

Surprising Sea Slug Is Half plant,Half animal

A green sea slug appears to be part animal,part animal.It is the first critter discovered to produce the plant pigment chlorophyll.These slugs seem to have stolen the genes that enable their skills from algae they have eaten .With the combiened genes,the sulgs can carry photosynthesis(process plants use to convert sunlight into enery).A biologist Sidney Pierce of the University of South Florida has been studing these unique creatures for 20 years and presented his finding to the Society and Comparative Biology in Seattle,but Science News reported this finding first. Offically called Elysua chlroratica these sneaky unique creatures live in salt marshes in New England and Canada.Also the slugs steal tiny cell parts called chloroplasts which they use to conduct photosynthesis.Therefore,reserchers use radioactive tracers to be sure that the slugs are actually producing the chlorophyll themselves as to stealing the pigment from algae.The slugs incorporate the genetic matirials so well they pass it to further generations.The baby slugs have the ability to produce their own chlorophyll,but they cant carry out photosynthesis until they have eaten enough algae to steal the necessary chloroplats.Moreover,this connects directly to science because this is an example of evolotion the slugs pass on important survival skills in the genes of their further generations.In my opinion this is an intresting find because plants and slugs are two different spicies and now they are one.http://www.livescience.com/animals/green-slug-animals-100112.html

Interviwing an Oceanographer

file:///private/Network/Servers/xrdsx2.sbschools.org/Volumes/DataHD/StudentsA-L/GY2014/10010925/Desktop/www.podomatic.com:profile:omegapride.webloc

I interviewed "Lena Delta" an oceanographer.On my "T.V Channel" C.E.C (College Education Channel).On her boat we talked about her job.

Burning Suger

This week in class we did a lab on burning suger.We placed a test tube containing two suger cubes in the flame.In this lab we learned what occures when suger is burned. Soon the buttom of the test tube began to burn so did the suger its self and smoke was coming out from the top of the test tube.After the burnt suger cooled,we observed it.The new substance was a brown-black color.The hardness was somewhat dense and solid and the texture was rough,hard and smooth.In the end my group learned that the suger was not still present because when suger is burnt it turnes into ash and the water in the suger dissolves.In my opinion I think this lab was fun and it help me better understand pysical and chimical changes.

Nearly 3 Dozen Planets Found

http://www.livescience.com/space/091019-exoplanet-harps.html
By-Andrea Thompson

Ever wondered if there are more planest oustide of this solor system.? Well Astronomers announced the discovery of 32 extrasolor planets.Some are five times the mass of Earth and the others are five times heftier than the biggest planet in our solor system Jupiter.Therefore,in class we are studing density which has to do with mass.These new planests were found with the HARPS(High Accuacy Velocity Planet Searcher) spectrograph on the European Southern Observatory's.The HARPS program survayed about 2,000 stars for five years.The particular aim is for looking at solar-type stars for low-mass planets .In my opinion I think this is a great find.These new findings can help us find planets exactly like our own so one day we can explore it and live on it.

by:Jeanna Breyer