Monday, April 28, 2014

Matter: Mass and Weight

Hello readers,
Recently I have learned about Mass and Weight.

Liquids, gases and solids, are all a type of matter.  All matter has mass and weight. After watching the video clip Measuring Volume and the Mass of Matter, I know that all matter takes up space and all matter has a pull of gravity.

Weight is the gravitational pull on you.  Mass isn't the same as weight because mass is how much space you take up.  I know this because I watched the video segment Weight and Mass.  It is a common mistake to mix up mass and weight. So remember that weight is the gravitational pull on you and that mass is how much space you take up.

 

Monday, April 14, 2014

Respiratory System

Hello Readers,
Recently, I have learned about the Respiratory System.

The function of the lungs is to transport clean, filtered and moistened air to the blood cells in your body. Plus, the lungs allow air in and out of the body.  The lungs are responsible for inhaling oxygen and nutrients and exhaling carbon dioxide and waste.

The Respiratory System helps the body by transferring air to the blood cells in your body.  It is import ant that your body gets oxygen and nutrients, but it also needs to get rid of carbon dioxide. The Respiratory System is responsible for allowing oxygen and nutrients into the body and forcing carbon dioxide out of your body.  The Respiratory System also cleans, filters and moistens the air that you inhale.

First the air travels through the nasal passage or the mouth, the nasal passage is where the air gets filtered, cleaned and moistened. Then, air travels through the larynx. Then, air goes through the trachea and through the bronchi. The bronchi then branch off into bronchiole.after that the air sits in the alveoli until it gets picked up by a red blood cell.

Tuesday, April 1, 2014

Amounts of Homework

Hello readers,
Recently I have read the article Homework: Little or Too Much? It Depends.  This article is about how different schools have different amounts of homework, there are other things kids may do after school besides homework and how the past is compared to the present based on how much homework kids get.  

Different Schools, Different Amounts of Homework
Different schools may have different policies. Some kids may have hardly any homework at all, while others may get a two hours worth each night though they are in the same grade. In the article it says, “The amount of homework can differ widely from school to school, though.” I think other kids may find this unfair because some kids may wish they had more or less homework knowing what other kids get.

Other Plans for the Night
Many kids have other plans for the night that homework may interfere with. Sports, band and some other after school-activities are popular in a lot of schools. The article says, “Students were asked to list how much time they had spent per week on various activities. Nearly two-thirds said they had spent six or more hours a week socializing with friends.” I think other activities may be a problem when it comes to homework.

The Past Compared to the Present
The past is a major difference to now of how much homework kids get. in the article it says,“But only 38.4 percent spent that same amount of time on studying or homework during their last year in high school. And homework not only came in behind socializing. It also trailed exercise or sports and working for pay...Back in 1986, the percentage of students who spent at least six hours a week on schoolwork was larger: 49.5 percent...The percent of students with more than two hours of homework was almost the same in 2012 as it was in 1984” I wonder if this is a problem or something good?



Big Ideas
Text to quote in your post
Your own thinking
Different schools, different amount of homework.
“The amount of homework can differ widely from school to school, though.”
I think that this may seem unfair to other students because some students may wish that they had more homework and others might want less homework.
Other things kids may do besides homework.
“Students were asked to list how much time they had spent per week on various activities. Nearly two-thirds said they had spent six or more hours a week socializing with friends.”

I think that other activities might interfere with how much homework kids need.
The past compared to the present.

“But only 38.4 percent spent that same amount of time on studying or homework during their last year in high school. And homework not only came in behind socializing. It also trailed exercise or sports and working for pay.”     “Back in 1986, the percentage of students who spent at least six hours a week on schoolwork was larger: 49.5 percent.”              “The percent of students with more than two hours of homework was almost the same in 2012 as it was in 1984”

This is a major difference. Is this good or bad?