Tuesday, May 13, 2008

CLASS RESPONSE NUMBER FOUR: 'Artic Tale' helps us realize there might not be an Artic soon edition

Recently during class, we saw a movie entitled 'Artic Tale'. It was about the life of two types of animals in the Artic and how sometimes their melting world forces them to intrude on the other's life. Queen Latifah narrates the story on how global warming is making it harder for the animals in the colder parts of the world. On how it makes them do things in a different way than they have for years. For example, Nanu's mom has to force Nanu to separate earlier than supposed to because if they didn't separate both of them would die. Another reason is that Auntie had to sacrifice herself to the male polar bear to let Seela and her mother escape. If there was ice and it wasn't all water the Auntie probably wouldn't have died. On the other hand, this helps the polar bear population increase, even though that might lead to a decrease in walruses and other animals. At the end of the film, it's stated that if this lifestyle keeps going on, and if people don't care there won't be any Artic ice by 2040.

Think about it.


SOURCES:
Artic Tale Movie
http://en.wikipedia.org/wiki/Arctic_Tale

Monday, May 12, 2008

CLASS RESPONSE NUMBER THREE: bubbles!!! edition

<=The fish from 'Finding Nemo' that obsesses over bubbles. A few days ago in class we did a fun but educational lab concerning bubbles. There were about 5-7 plastic bowls (that I hope were recycled:]) and contained dish soap, paint, and a little bit of water. We used straws and blew air into the straws and into a bowl with the desired colour we wanted. When we were satisfied with the bubbles we blew we rapidly took a piece of paper and pressed the bubbles onto the paper, leaving a cool mess on the paper. THE SCIENCE PART::: I researched this topic and found out the following on wikipedia. I found out that bubbles maintain a certain surface area until popped. You can find the surface area in a little bit of every space on the the bubble. Also, it is known that a bubble can survive because the surface layer of a liquid (usually water) has a certain surface tension, which causes the top layer to act like a thin elastic sheet. Surface tension is also responsible for the circle like shape the bubble takes. Furthermore, a sphere has less surface area possible for a given volume.

SOURCE:
http://en.wikipedia.org/wiki/Soap_bubble