Properties of gas

Today in science class we talked about pressure and gas. We talked about if you put water in a pot and put a lid on it and then add heat. Evaporation would occur. It would go up into the lid and come back down into the pot. When the water begins to boil, there would be so much pressure that the top would begin to shake letting H2O escape. If you boiled water without a lid, the evaporation would go into the air and when it starts to boil and then when the pot cannot hold the h2o any more it over flows. Then after that we went on this really cool website that showed us exactly what happened when you add pressure and heat. For the first thing it was just showing you what happens when you add heat or take heat away from water, oxygen, neon, argon. The second one showed what happened when you put pressure on water, neon, oxygen, and argon. These experiments were very fun and in my opinion was a great way to learn what we were studying about.

                      

The Really Strange Story Behind Sunday's Blue Moon

By Joe Rao

 

Posted on
 

SPACE.com on November 19, 2010

 

 

 http://news.yahoo.com/s/space/20101119/sc_space/thereallystrangestorybehindsundaysbluemoon

WARNING – The moon is not really the color blue. I checked outside. Honestly it looked like a normal moon to me. I learned in this article that they only call it a “Blue Moon”. When there are four full moons in a season, the third full moon is called a “Blue Moon”. Confusing isn’t it? Usually there are twelve full moons each year. Three full moons in each season. Some years there are thirteen full moons. People used to base their calendars on the full moons so when there were thirteen in a year instead of twelve it messed them up. According to the article, that is why the number thirteen is considered unlucky. What I found interesting about this article is that the moon can change colors. For example, the moon can appear reddish after a solar eclipse or a bluish lavender color after a volcanic eruption or forest fire in those areas.

Corn Starch and Worm Goo

 Corn Starch and Worm Goo Which is Better?

                    In the last couple of science classes we have done two major and fun labs. They have a couple of things in common. They both need water to work. They are both mixtures. There are some things different. They make different substances and have different textures. The corn starch experiment was made of water and corn starch. It made a liquid and a solid substance. The goo experience contained water and worm goo. It made a clear white strip of goo. When squeezed water sometimes comes out. It turns into a plastic like substance when the water evaporates. They two look, smell, and feel different. But they are both mixtures. Like mud or pancake batter. I found the corn starch experiment fun but I enjoyed playing with the little balls of worm goo more fun.

Soap could help Haiti

As Death Toll Rises, Experts Say Soap Can Help In Haiti's Cholera Outbreak

by Eyder Peralta

               NPR (National Public Radio) website posted November 15, 2010

http://www.npr.org/blogs/thetwo-way/2010/11/15/131343028/as-death-toll-rises-experts-say-soap-can-help-haiti-s-cholera-outbreak

Do you ever think about soap?  It’s not one of those things I think about but I use it every day.  What about food?  You probably think about that.  If you had a 100 dinar, would you rather spend your money on food or soap?  People in Haiti face this difficult decision every day.  Their country is currently fighting a cholera outbreak.  About 1,000 people have died since the outbreak began.  Cholera spreads quickly due to dirty water.  Soap could help by allowing people to clean their hands, food and other things that have been contaminated. I bet you are wondering what Cholera is.  It is an infectious disease caused by bacteria. Cholera causes diarrhea and dehydration and can lead to death. People need clean food and soap to live.   Which one would you choose?

OOBLECK

http://www.youtube.com/watch?v=yrruNuJSYb8&feature=related

corn starch

I loved the corn starch experiment for several reasons. One reason is how it is both a solid and a liquid. Another reason is that when you press your hands together that makes it fell hard but when you stop pressing it turns into a liquid goo. I also loved playing with the goo at home even through it made a big mess. I liked that you didn't need soap to wash your hands since the powder came right off when you put your hands under water even though I used soap. I observed that the mixture smelled like garbage. I also made an observation that when you put a bunch of goo in your hand and cup it, it feels like you are touching a persons hand but really you are touching the goo. I never knew corn starch and water could make such an interesting substance. Overall, I think this was one the best science experiments this year so far and definately the most fun.

Commercial Space Travel Rules of the Road

Commercial Space Travel Rules of the Road

By Irene Klotz

Posted on Discovery News.com November 5, 2010

http://news.discovery.com/space/commercial-space-travel-traffic.html

By Emma 6a

 Did you know that the United States National Aeronautics and Space Administration also known as NASA is retiring the space shuttle program next year?  After next year, only Russia will be able to fly to the International space station.  The United States will have to pay Russia fifty­-one million dollars each to take America’s astronauts up.  NASA believes that in the next couple of years that private companies will be able to send people to space for half the cost Russia is charging. 

Today the Federal Aviation Agency (FAA) is responsible for regulating commercial air space.  In the next ten years, their jobs will get even harder than they are now because they will need to regulate space travel too.  In my opinion, their job will not be easy.  They will need to track the launching, orbiting, re-entry, and landing of commercial space craft with regular commercial air traffic.  No doubt they will need more training to take on this big job. 

Baby Dinosaur's Running Footprints Discovered Near Denver

Baby Dinosaur's Running Footprints Discovered Near Denver

By Jeanna Bryner

LiveScience.com

http://news.yahoo.com/s/livescience/20101102/sc_livescience/babydinosaursrunningfootprintsdiscoveredneardenver

November 2, 2010

Scientists in the United States of America just announced that they discovered baby dinosaur foot prints near the town of Morrison, Colorado. The tracks showed that the baby dinosaur was running. What interested scientists were that the baby dinosaur appeared to be running on just its two back legs. Scientists also found foot prints beside the baby dinosaur tracks. They think these could be the parent of the baby dinosaur. I bet you are wondering what type of dinosaur it is. It is an Apatosaurus dinosaur baby. The foot prints of the baby were so small that you could put a whole coffee mug over it and you would not be able to see the foot print anymore. I think that is small compared to how big the adult Apatosaurus dinosaur gets. When it is full grown, the Apatosaurus is as big as three American school buses and can weight up to as much as eight Asian elephants. The adult Apatosaurus needed to walk on four feet which is why scientists are so excited to learn that the baby could run on just its two back legs.

Glogster

Indonesia volcano erupts, 20 hurt by hot ash

Indonesia volcano erupts, 20 hurt by hot ash

By Salmet Riyadi, Associated Press

October 26, 2010

http://news.yahoo.com/s/ap/20101026/ap_on_sc/as_indonesia_volcano

It was a difficult week for many Indonesians when several natural disasters hit.  Indonesia is an archipelago or a large chain of about 17,500 islands located in Southeast Asia in the Pacific and Indian oceans.  A volcano named Mount Merapi located in central Java erupted this week. Twenty people were injured by hot ashes from the volcano.  Earlier in the week, people were evacuated from the volcano are mostly children and the elderly.  However, many grownups decided to stay to take care of their farms and homes at the bottom of the mountain.  An even more serious natural disaster occurred at almost the same time.  Eight-hundred miles away in Sumatra a strong earthquake struck.  It caused a tsunami or giant ocean wave which is reported to have killed over one-hundred people on remote islands so far.   These types of natural disasters are common in Indonesia because it is located along the Ring of Fire in the Pacific where fault lines occur.

In conclusion I hop there will be no more natural disasters this week in Indonesia or in any other country.

   

Gliese 581g

“Gliese 581g: If there's life there, how will we know?”

Written by Mike Wall in The Christian Science Monitor on

4 October 2010

 http://www.csmonitor.com/Science/2010/1004/Gliese-581g-If-there-s-life-there-how-will-we-know

This article is about the discovery of a new planet called Gliese 581g. Scientists believe that there is a 100 percent chance that Gliese 581g has life on it. They think this because Gliese 581b is not too hot or too cold and may have water. With today’s advanced technologies such as new telescopes scientists can study Gliese 581g to learn more about it. Because Gliese 581b is over twenty light years away from the Earth’s surface, it may take scientists many decades to find out what kind of life exists there if any. They can begin studying Gliese 581g by listening for emissions with radio telescopes. Another way scientists can learn about Gliese 581g would be to study its atmosphere but they do not have a way to do this for Gliese 581g yet. I wonder if someday we will be able to leave Earth’s atmosphere and vacation on Gliese 581g.

The ozone layer on its way to Recovery

http://www.dogonews.com/2010/9/26/ozone-layer-on-its-way-to-recovery

The Ozone Layer on its Way to Recovery

Published by the editor of dogonews.com

The article was posted on 26 September 2010

This article is about the ozone layer and how it is recovering faster than scientists expected.  Scientists discovered a problem in the ozone layer in the 1970’s. The ozone layer protects the Earth from the blazing Sun.  The problem with the ozone layer was that it had been getting thinner.  Today we know that this was caused by chlorofluorocarbons a chemical that was used in Styrofoam and other products. The ozone layer is far above the Earth’s surface. After discovering the source of the ozone problem, one-hundred and ninety-six countries signed the Montreal Protocol.  The purpose of this agreement was to reduce the use of chlorofluorocarbons and restore the ozone layer.  A report published by over three-hundred scientists from the United Nations recently announced that by 2050 the ozone layer will be recovered to the 1980 level.  I think that this is very important because it will help stop global warming.

Summary of The long-distance voyage of Plastic

http://www.eurekalert.org/features/kids/2010-08/aaft-tlv081310.php

The article, The long-distance voyage of Plastic, is about plastic in the Atlantic Ocean.  For twenty-two years, scientists have been researching the amount of plastic by collecting samples from the ocean surface and studying them.  They were surprised to learn that the amount of plastic didn’t decrease or increase over twenty-two years.  That surprised me because I think we use more today than we did twenty-two years.  The marine biologists think that either the fish are eating the plastic, it’s sinking to the bottom of the ocean or it is too small to collect in the net.  I think all of these may be true.  Obviously all of these options are extremely bad for the environment, the fish that live in the Atlantic Ocean and even people who eat fish.  Dr. Kara Law and her colleagues researching this serious problem. In the mean time, I encourage everyone to recycle their plastic containers and help save our oceans.

Mass

In the table all gas liquid and solids have definite mass.

matter

Atoms are matter everything has atoms the human eye can not see atoms

my goal

my goal fore this year is to try not to get stuck on words when i am reading . i recently learned  that if  i look at the word and then spell it out laud and then sound  it out it helps me a lot . i will achieve this by reading more often.

         I also wont to try not to ever tern in home work late

HI

Science is fun to learn.