Weekly Revision

This week we have been focusing on writing paragraphs. We learnt what a proper paragraph has to have and then we had to write an explanation. We read an article on how human have preserved bodies here is a link to the article Click here  here is my explanation so far.

Everything that is born has to die eventually No one can outlast death even  though many different cultures have tried for thousands of years. Humans have created many ways for people to  preserved bodies one of the most well known ways is mummification

Mummification

Mummification is one of the oldest ways to preserve a body. It’s not just the the Egyptians that used to mummify corpses, but other cultures such as Aztecs (Mexico) and Pacific Islands preserved bodies as well. The first thing they did was eviscerate the corpse, making sure to leave the heart behind because it is supposedly essential for the journey to the afterlife. To prevent bacterial decay the body was washed with palm wine and spices it was then covered in salt and left to dry out for about 40 days. Finally the corpse was washed again and then wrapped in many layers of cloth and then to stop the body  from getting wet it was covered in a layer of resin. The body was then carefully placed in a tomb with worldly goods along with their organs in jars.

Fantastic Plastic  

Turning corpses into plastic is not the ideal way to preserve them. To turn a cadaver into a real life action figure there is a four step plasticising procedure that must be done. To prevent tissue decomposition the corpse is first set in a  preserving solution called formaldehyde. After that the body is opened up to reveal any organs or tissue for  display by an anatomist. Then the cadaver is placed in a sub zero acetone bath to dehydrate; as the body freezes all the water and moisture is sucked out of it. Acetone at a freezing temperature of -95 degrees is pumped in to replace it. Finally once all the water is gone and the cadaver it completely filled with acetone it is then submerged in a liquid polymer, silicon rubber, polyester or epoxy resin bath. After the bath it’s time to remove  the acetone they do that by placing the corpse under vacuum conditions the acetone quickly dissipates  and as it leaves it draws liquid plastic into the cells. The cadaver is now reconfigured into its final resting position as its plastic packed organs and tissue are restored with gas, heat or UV lights.



I have also done a lot of work on my maths I have got a lot of work done from volume to order of operations but Mr Wood has been working a lot on year 9 stuff but mainly travel graphs and i got 100%

So that's some of the stuff I have done this week let me know what you think by commenting 

Bye.