## Sunday, March 4, 2012

### The Week of March 4, 2012

Welcome to the first full week of March!  I hope you didn't float away from all the rain this weekend.  While the rain surely stopped any outside activities you may have had on Saturday, we desperately needed the precipitation to help all of the beautiful flowers and trees to grow.  Spring is right around the corner!

This week in math we will be doing some more work with surface area.  Instead of focusing on rectangular prisms and cubes, we will take a look at cylinders.  Here is a video that reviews surface area of cubes and rectangular prisms and also shows surface area of triangular prisms:

A video that shows how to find the surface area of a cylinder can be found HERE.

You will have a lot of math homework this week.  Be sure you are completing it every night so you will be comfortable with finding surface area.  We will have a quiz on surface area this Thursday.  Don't forget to be submitting a completed geometry sky tower each week, also.  Finally, good news:  www.tenmarks.com is working again!  I will give you your username and password so you can use it to practice current topics of study, review topics we haven't talked about in a while, and brush up on anything you need more practice doing.  You will have access to this website at school and at home.

In science we will be continuing our discussion of the sun, moon, earth connection.  I will give you a lesson on Monday about solar and lunar eclipses.  This week, you must also complete your "Lunar Lunchbox" choice sheet.  Use any extra class time to study for your test this Friday.  Here is a study guide to focus your studying:

The Earth, Sun, and Moon Study Guide

The sun is found at the center of our solar system.  The sun is made of hydrogen and helium that is held together by gravity.

The sun’s energy comes from nuclear fusion.  This is when two or more nuclei fuse, or join together, to form a new nucleus.  This process releases a huge amount of energy.  In the sun, two hydrogen nuclei fuse together to form helium.

Sunspots are cooler, dark spots on the photosphere.  The sun’s magnetic fields slow the movement of gases.  This causes certain areas of the photosphere to become cooler than others.  Sunspots can affect the Earth’s climate.

Solar flares are extremely hot, bright regions on the sun’s surface.   They can extend up to several thousand kilometers within only a few minutes.  They can interfere with radio and television waves.

Earth’s moon is also called Luna.  It formed 4.6 billion years ago when a large body collided with Earth.  The collision blasted a part of Earth’s mantle off into space.  Over time, these parts joined together to form the moon.

As the moon travels around the Earth, varying amounts of sunlight is reflected by it.  This causes the moon to appear to change shape. This is called phases of the moon.

An eclipse happens when the shadow of one body in space falls on to another.  A lunar eclipse happens when the moon comes between the sun and Earth.  Then, the shadow of the moon falls on part of the Earth’s surface.

A lunar eclipse happens during a full moon when the moon passes through the shadow of the Earth.

The above study guide is the same one I gave you last Monday.  Please study the diagrams found on that paper copy, too.  In addition, review your vocabulary and phases of the moon because they will be found on Friday's test, as well.

I'm very impressed that some students are completing bonus work on their choice sheet.  That shows good initiative and a drive to go above and beyond expectations.  Keep up the good work!

See you tomorrow,
Mr. Trent