Mechanical Waves

In class on December 22nd, we learned about the two different types of mechanical waves. Mechanical waves are waves that travel through a material medium.The first mechanical wave is the longitudinal wave. A longitudinal wave causes particales to viberate in the same direction as (parallel to) the direction that the wave is traveling. The other wave is a transverse wave. A trasnsverse wave causes particales to viberate in a direction that is perpendicular to the direction that the wave is traveling. To demonstrate theses two waves we used Slinkys and long metal springs. The Slinky was used to show longitudinal waves and the long metal spring was used to show transverse waves. We each had a partner and we took turns trying out the two objects. The Slinky and the metal spring were the mediums. We had to take mental notes on what happened when we moved the Slinky or the metal spring up and down or side to side. I noticed that each time the metal spring moved up, the space between each spiral moved farther apart.

Ecology Study Game

This game was all to help us ace our tests. We played Ecology Jeapordy. There was buzzers to press to see who couldanswer the guestion. The class was divided into five groups. Red, orange, yellow, blue, and purple. My team was the blue team. There was questions like; what is a organism that eats only producers? In the end, the red or the orange team won. I don't remember which team it was. All I know is it helped me a lot and I think we should do this again for every test that we have because it really helps.

Boom Blox

http://en.wikipedia.org/wiki/Boom Blox

Boom Blox is an extremely fun game that was realesed on May 6th all over the United States. The game shows a series of physic-based games. The object of the game is to knock the blocks down using the Wii remote. We played this game in class, and let me tell you, that game can get people screaming. We played Boom Blox in class because it had to do with competition. It had to do with competition because You fight with the game to win the mini-game. This game was fun and I got to learn about competition and different ways it takes place in.

Bird Sets Record With 7,257-Mile Nonstop Flight

http://www.msnbc.msn.com/id/27322698/

Who: The bar-tailed godwit

What: Continuously flew 7,257 miles nonstop, breaking a record of 4,038 miles from the Eastern curlew.

Where: Across the Pacific Ocean to New Zealand

When: Friday, October 17th 2008. Lasted 5 and 9.4 days.

What I think: I think it was amazing that a bird could fly for that long with no food, water or rest.

Polar Ice Feels the Heat

http://www.sciencenewsforkids.org/articles/20080423/feature1.asp

Who: It's effecting most animals in the North and South Pole such as polar bears, whales, gray wolfs, grizzly bears, bald eagles, buffalo whooping cranes and florida panthers.

What: The polar ice and other glaciers melting and causing the atmosphere to become warmer. We need the cold to stay alive.

Without ice we won't be able to survive on Earth.

Where: National Snow and Ice Data Center and other glaciers and polar ice.

When: Now and in the future.

Why: Global Warming is causing lots of animals to go extinct.