## Saturday, September 22, 2012

### The Week of September 24, 2012

Happy first day of Fall!  I really do enjoy the hot and humid weather in Savannah, but i'm also looking forward to the cooler weather promised by the coming of autumn.

In math this week, we will be reviewing division.  I know division is something that you have been doing for a few years now, but I really want to take a deep look at what it means to actually divide numbers.  After a review of long division on Monday, we'll take it up a notch and throw some decimals in the dividend and divisors.

Dividing Decimals:

Be on the lookout for two division homework assignments this week, and a division quiz on Thursday. Your TenMarks assignment will also focus on division of decimals.  Please complete TenMarks by Friday.  We will also be continuing the MAP math assessment this week.  I hope to have everyone who has not taken the assessment complete it this week so we can get back to a normal workperiod.

In science, we will continue our work with the rock cycle.  I've am so impressed in the quality work completed this week.  I've seen some amazing rock posters, read some creative narratives about journeys through the rock cycle, and even enjoyed a few rock poems!  Keep it up, all this work is helping you more deeply understand the complexities of the rock cycle and is preparing you for your test on Friday.  You can also use the following study guide to get ready for Friday's test:

Please study the following items for your test on Friday.  You will also need to review your vocabulary list given to you last week.

Types of Rocks
Igneous Rocks- form when hot, liquid rock (magma) cools and solidifies
Extrusive igneous rock- forms from magma that erupts onto the
earth’s surface.  It is common around volcanoes.  It cools quickly on the surface and contains very small or no crystals.
Intrusive igneous rock- forms when magma cools below the earth’s
surface.  The magma cools slowly and forms large, visible crystals.
Sedimentary Rocks- form at or near the Earth’s surface.  It forms without the
heat and pressure that are involved in the formation of igneous or metamorphic rocks.  Formed of weathered rock/mineral fragments, crystallized minerals, or from the remains of once-living plants and animals.
Metamorphic Rocks- Forms when rocks are exposed to intense heat,
pressure, or a combination of both.
Contact metamorphism- When a rock changes to a
metamorphic rock through heating from nearby magma
Regional metamorphism- When a rock changes to a
metamorphic rock due to the pressure from the Earth above it.

A Diagram of the Rock Cycle

You have a few other science-related items to keep in mind this week: