Chicken Wing

On Thursday our science class dissected a chicken wing.  We learned the diffrent parts in a chicken wing, what color they are how they feel, etc.  My favorite part of the chicken wing were the tendons.  The tendons were shiny and white.  The tendons were at the end of the muscles that attached the muscles to the bones.  It was sooooo cool when our science teacher pulled on the tendon and the bones moved.  I thought it was freaky but also cool.  The part that I thought was disgusting was the fat.  The fat was yellow, and it was under the skin.  EEEWWWW!  The reason we did this lab was so we could see how human's arm work.  Other terms we learned were; Cartilage, Ligament, Muscle, and Skin.  Not only did we learn these terms but we also learned what color they were,the texture it had etc.

Diffusion Lab

Today in science class I learned new words such as diffusion and osmosis.  I also learned that if you put a bag of starch mixed with water into a beaker filled with water and iodine the bag of starch and water turns purple after 15 minutes.  In the beginning when we put the baggie into the water/idoine the water was orange but grudually changed color.  From this lab i learned an intresting fact, that molecules don't like to be crammed togather they want to move around freely.  An example Mrs. Rousseau gave was that if she put all of Omega and Chi in the science room everyone will be crammed together.  When she opens the room people will start to drift out, this is the same with molecules.  I also learned that the plastic bag was permeable to iodine since that was what the lab thought us.  

Prevention: Coffee Lowers Risk of Prostate Cancer, Harvard Study Says

A new result has shown that if people drink coffee they're less likely to have prostate cancer.  Harvard students did research on how much people drink coffee.  They found out that people who drink 6 or more cups of coffee have a 20% less chance of having prostate cancer.  Heavy coffee drinkers were 60% less likely to get lethal form of the disease than the non-coffee drinkers.  This study did not measure how much caffeine is put in the coffee or whether it is not caffeinated, rather the cups drank.  By drinking coffee you also have a lower risk of getting Type 2 Diabetes.  This study isn’t telling people to go crazy with drinking coffee, rather just drink it 3 to 4 time a day, or more just not crazy like 30 cups.   




http://www.nytimes.com/2011/05/24/health/research/24prevention.html?_r=1&ref=health

Why Do I Get Acne!!!!

I have acne and I try every possible way to get rid of them.  I never really understood why teenagers got pimples, but by reading this article I’ve finally cracked the code.  Anyway, I learned a few tips to keep my skin healthy, and to have fewer pimples.  For example, I learned to watch my face often, not just twice a day.  My cousin told me to wash my face with cold water, but according to this article I should wash my face with warm water.  I also learned a few more terms from this article like, sebum, which is oil that lubricates your hair and skin.  Another term I learned is sebaceous glands which are also called oil glands.

Rocket Lab

My partner, Palavi and I conducted an experiment in the rocket lab.  We learned a lot about gravitational potential energy and elastic potential energy.  Gravitational potential energy is the energy stored in an object as the result of its straight up position or height. The energy is stored as the outcome of the gravitational pull of the Earth for the object.  Elastic potential energy is the energy stored in the rubber band as the result of its stretching.  For example, when we stretched the rubber band two centimeters, (elastic potential energy), the height that the straw shot in the air was fourteen meters.  So to find the gravitational potential energy we used the formula mass x Gravitational acceleration x height.  We plugged in the numbers for the formula 2 kilo grams; being the weight of the straw, 9.81; the gravitational acceleration and 14 meters; being the height.  Al together the G.P.E was 28 millijoules.  The more elastic potential energy you have, the more gravitational potential energy you’ll have.  For example, when Palavi and I stretched the rubber band to 3 centimeter, the height was 32.3 meters high and the gravitational potential energy was 64.6 millijoules.    

                Palavi and I probably measured the height of our rocket wrong.  Because, when we stretched the rubber band back to 2 centimeters we got a height of 14 inches.  But when we stretched the rubber band back to 3 centimeters we got a height of 32.3 millijoules.  Palavi and I most likely measured the height of the rocket wrong.  To fix this problem we could start this lab over and accurately measure the height of the rocket once more.  Making sure our data is as authentic and realistic as possible.

Case Study 3 Trisomy 13

98 pizza way Dasani, Florida 52986

3/31/12

Denise and Mark Close

123 Harry Potter Rules drive

Cup holder, Florida 52903

Dear Mr. and Mrs. Close,

Dr. D and I have examined your child’s karyotype very closely.   Karyotype is a test we use to check your child’s abnormalities.  To do this test we line the baby’s chromosome and examine the chromosomes.  We check for diseases, and by doing this test we are able to determine the sex of the baby.  In this case Mr. and Mrs. Close I’m pleased to announce that Mrs. Close will be delivering a girl.  While we were determining the karyotype we found that your daughter has an extra copy 13 chromosome.

Having an extra copy of chromosome 13 is a rare disease called Trisomy 13 or Patau Syndrome.  Trisomy 13 is usually due to an egg cell, or, rarely a sperm cell which is formed containing one copy of each chromosome but an extra copy of chromosome 13.  Now rather the baby having 23 pairs of chromosome she has 24 pairs.  Once that egg is combined with the sperm which contains 23 chromosomes, the baby gets 47 chromosomes in the cell of their body rather than the usual 46.  Patau Sndrome also is more common is women who are pregnant at an age over 35.  Trisomy 13 can also occur if you have a family history of Patau Syndrome.  There are many physical defects because of Patau Syndrome.  A few of these defects are; Holoprosencephaly, polydactyly, flexion of the fingers, rocker-bottom feet, facial clefting, neutral tube defects, and heart defects.  These disorders are naturally long term affects.

There is no treatment for Trisomy 13 except for polydactyly, which is cured by surgery.  Sadly, if a child has Patau Syndrome she’ll pass away in fewer than three days.  The only thing you can offer your child is comfort and stay with her as long as you can.

As I said before if you have a history of Trisomy 13 you’ll have a higher risk of producing a Patau Syndrome.  Also if you’re over 35 years old and have a child you also have a higher risk of delivering a child with Trisomy 13.  Trisomy 13 is a very rare disease.  It occurs in about 1 in 5,000 to 1 in 12,000 in babies and usually common in baby girls.  I’m sorry to say if you were to have another child it’s a 50, 50 chance that the next child would be diseases with Patau Syndrome.

I’m sure you’ll spend time with your new daughter for as long as you can.  And I’m a 100% sure that your daughter will bring happiness and joy to your life as long as she’s alive.  Mr. and Mrs. Close I’m sure and positive you and your daughter will be a great family for as long as she survives.

Sincerly yours,

Doctor Irfan

Works Cited

"Trisomy 13." Genetics Home Reference. HONcode standard, 20/03/2011. Web. 23 Mar 2011. <http://ghr.nlm.nih.gov/condition/trisomy-13>.

"Trisomy 13- Patau Syndrome." Centre for Genetics Education. Australian Institute of Health and Welfare, 02/06/2007. Web. 23 Mar 2011. <http://www.genetics.com.au/pdf/factsheets/fs29.pdf>.

"Print this page ." Lucile Packard Children’s Hospital. Lucile Packard Foundation for Children’s Health , 2011. Web. 23 Mar 2011. <http://www.lpch.org/DiseaseHealthInfo/HealthLibrary/genetics/trisomy.html>.  

Mocking Birds

Mocking birds can sing.

They are more precious than a ring.

Mocking Birds make you feel happy.

You can be certain they will never make you feel sappy.

They are music to your ears,

while you hear.

You know Mocking birds are treasures,

every time you need pleasure.