Tuesday, October 5, 2010

Current Event #2


Dreaming makes perfect

Sleeping? No! That's what a teenager would say if u asked them. There are lots if kind of dreams. There are fantastical, boring, weird and a lot more. No one actually knows why we are dreaming, but some dreams can be related to studying something new. Scientists made new studies, in a connection between sleeping-time dreams are better memory in people if they learned something new. So just practice, practice, practices, and start sleeping on it. :) (WARNING: This doesn't mean you’re allowed to sleep during class!) In this study 99 college student the age of 18-30 each spend an hour trying to figure out the virtual maze. This maze was hard every time they had to start in a different place each time they tried. They also had to picture of a tree and remember where the saw it. There was a 90 minutes of a five-hour break, one half of the college student was told to take a short nap, and the other half was told to stay awake. The students that were awake were told to tell what’s in their thoughts. The other group of people was asked what was there dream before and after the sleep. The scientists wanted to know about NREM ("rapid eye movement"), or non-NREM, what happens during REM sleep. This time of sleeping usually bring weird or bizarre dreams to the sleeper, even though dreams can happen in all two modes of sleep. Four out of 50 people said that there dream was connected to the maze they did before. Some dreams were about the music that was played when they were working on the maze, and others were seeing people in the maze. When the 4 people tried the maze again after the nap they were able to the tree faster than before. One of the scientists thought the dream doesn't help to learn. He said that it's the other way around. All 4 of the people who dreamed about the maze did very poorly for the first time.


Tuesday, September 28, 2010

Current Event



Antarctica warms, which threatens penguins


Do you like penguins? If you do then I have a bad news for you. In Antarctica the temperature is going up, and that’s not good for penguins. Scientists these times they are studying the climate because it changes too often there. But, at the South Pole and Lake Vostok it’s getting colder and not getting warmer. A group of scientist looked more into the data where they found this information, some of the data went back 50 years, so they decided to estimate of temperature and make a new data table the new data table showed that West Antarctic Ice Sheet has been warming. This place takes up about one-quarter of the whole continent. West Antarctica is warming about 0.17 degrees Celsius per decade. East Antarctica had cooled slightly between 1957 and 2006 but now it’s warming up. Drew Shindell said “The new results … indicate that there’s warming related to greenhouse gases on all seven of Earth’s continents” Melting ice can easily make disaster for the continent’s wildlife. A data of gathered at a penguin rookery showed that when sea ice was average of 11% the penguin population was really bad. At that time the penguin population was half of the normal. Even if the melting slows the population will be the same. Other research showed that Terra Adélie can only host 400 breeding pairs by the end of the century. Forty years ago there was a big different, it was 15 times as now.

Since the 1950s, some portions of Antarctica have cooled (as denoted in faint blue tones), but many areas, including West Antarctica, have warmed substantially (red tones). The stronger the tone, the larger the warming or cooling.

Bibliography: http://www.sciencenewsforkids.org/articles/20090204/Note3.asp

Picture: http://www.earthshots.org/photos/499.jpg




Tuesday, September 21, 2010

Current Event Tiny Pea-Sized Frog


In a forest in Southeast Asian island of Borneo, they found the smallest frog in the world. This is a Microhyla nepenthicola type of frog, it was named after a plant that it should live on. The adult male frog could grow 10.6 and 12.8 mm. These are so tiny so it's really hard to find one of these cool frogs. This type of frog helps a lot to humans it gets the insects that gives use bad disease, and also keeps the water system clean.


I think that this frog is this small is really amazing because it's the world smallest animal. I love the picture when that tiny frog is on the pencil it looks really cool. When I was reading the article I was really amazed.

Thursday, September 9, 2010

Survival

A egg could be a survival capsule. It helps to survive for lots of animals. Fox can ran as fast as a rabbit so it can get food. Also, fox eats anything to survive. As well, foxes live close to humans to get food easier. Hunting in team = sharing. Birds fly 600 miles just for food. Puff-el fish survives just because it blows up and the enemy can't put it in their mouse. A human can be under water for 3 minutes.

Videos to watch:

Tuesday, September 7, 2010

Living Things and the Environment

After reading the section on living things and the Environment in your textbook, apply your knowledge to answer the following questions in a new blog post on your blog. What needs are met by an organism's environment? What are the two parts of an organism's habitat with which it interacts? What are the levels of organization within an ecosystem? Why do you find different kinds of organisms in different habitats? Think about what will soon start happening within Belgrade. How do animals prepare for such a change?

Now, search for and embed a video showing a living thing in its environment. What would happen if we took away one or more of the living or nonliving factors in its environment? Which factors could they survive without?

Look at (at least) two of your classmates blog posts. Respond to them in their comments section under their post about either their answers to the questions or the video they have posted. Email me the names of the classmates who you respond to.

Thursday, September 2, 2010

KWL: Living Things

KNOW:
  • I know that a living thing have to have cells
  • It have to excrete waste
WANT TO KNOW:

LEARN:

What does a living thing have?
  • Cells
  • Have to breath
  • Have to excrete waste

Monday, August 30, 2010

Goals for Science Class

Some goals for Science:
  • I don't want to have late works.
  • I want to know more about Science.
  • I want to do better Current Events.
  • I wanna be more organized then last year with my notebook, because last year my note book was so bad.