Warming Arctic comes unglued: Rising rates of erosion strike region’s ice-rich coastlines

Arctic coastlines are decreasing half a meter annually. The cause to this is a warming climate according to an Alaskan study that has also calculated the amount of minerals and nutrients being washed into the shores. Erosion annually in some parts is more than 8 meters and it continues to increase. Arctic coasts are quite vulnerable because they’re held together by ice. What is occurring in the coastlines is that sediments are breaking apart in places where global warming is high. An analysis on Beaufort Sea coast in Alaska concludes that land losses are two times greater than what they were during the 1950s-80s. As warming air worsens and thaws icy patches in the permafrost, it affects soils causing it to sink below sea level.

This is an example of hypothesis-based science because experiments and observations were made in order to get to a conclusion. This research is important because it answers why the arctic shores are melting and provides to studies to make people aware of this. It also provides more knowledge about global warming.

Author: Janet Raloff

Title: Warming Arctic comes unglued

Journal: Science News

Date published: May 21, 2011

Page: 13

Altering a protein wipes out shocking memory in mouse brain

Scientists from the Medical College of Georgia and East China Normal University in Shanghai posed an experiment that erased memory from a mouse's brain. The experiment involved genetically engineering a mouse and used chemicals to block with a cavity alpha-CaMKII, a protein that is involved in storing and memorizing information. The scientists placed mice in a chamber, played a sound and then shock the mice's feet, they recognized the sound and learned to freeze when they heard the sound. The researchers then altered the protein, the mice had forgotten to freeze when they heard the sound. The removal of memory is only to the portion of the memory that was erased.

This experiment is an example of hypothesis-based science because the scientists made observations and used deductive reasoning to create an experiment and draw conclusions. This discovery may later lead to remove certain memories from a person's brain that may be causing them trauma or pain. It could also remove a piece of information from drug addicts that would eventually cause them to return to drugs.

Author: Tina Hesman Saey

Title: Altering a protein wipes out shocking memory in mouse brain

Journal: Science News

Date Published: November 22, 2008

Page: 8

Scientific Article Analysis

Rare rayed crater found in Sahara

The article talks about a 45 meter wide impact site that was made by a Meteor that is thought to have crashed about 5,000-10,000 years. The creater was discovered in 2008 from Google Earth in the Southwestern part of Egypt. Scientist think that it was a huge meteor because the rime of the creator is elevated 3 meters above the surrounding lands. When the impact occured, colored material blasted from the ground and created something that is not usually seen on Earth. This shows how fresh the creator is because the meteor that cause the rays of lights are ruined because of erosion.

The article is an example of discovery science because they are not yet asking question but discoverying the meteor and what it consists of.

The importance that the discovery of the meteor might have to humans is that it might be able to show were it came frome and if more mereor could come from the same place

By: Sid Perkins

Tittle: Rare rayed crater found in Sahara

journal: Science News

Date published: August 14, 2010

Page: 13