Week of September 23, 2012
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Visit the featured websites to find the answers.

How much did the U.S. pay Russia to purchase Alaska?
$7.2 million
$15.5 million
$32.1 million

What are the three distinct layers of the Earth?
Crust, outer core, inner core
Mantle, outer core, inner core
Crust, mantle, core

Which pigment gives most plants their color?

The Last Frontier

black bearAlaska Kids’ Corner, alaska.gov/kids, is a collection of historical facts, photos and awesome adventures you can experience in the state nicknamed “The Last Frontier.” Have you ever wanted to whale watch, pan for gold or ride a dog sled? These are just a few of the activities you can experience in Alaska. You can also catch a glimpse of the Bering Glacier, the largest in North America. Read tales of the Gold Rush, World War II and Alaska’s Russian Heritage. If you are curious about Alaska, this site will have what you are looking for.

Play Typing Jets
Typing Jets

Inner Earth

diagram of Earth's layersDelve inside the Earth’s core with Dynamic Earth, learner.org/interactives/
. Scroll over the interactive graphics to find out what the Earth’s layers are made of and what is 3,200 miles beneath its surface. See how vastly different Earth looked 250 million years ago. Plate Tectonics explains how Earth’s continents are constantly moving. Study the map, take the Plates and Boundaries Challenge, and see if you can place the boundaries in the correct locations. Natural disasters can occur when plates Slip, Slide & Collide. Test yourself at the end!

Shades of Green

artwork of riverGreen: the color and the cause, textilemuseum.org/green, is a stunning exhibit of the richest color in nature through art and textiles. Browse by Theme to learn how this brilliant color has come to represent life, conservation and the environment. Until the creation of synthetic dyes in the 19th century, there was no green fabric, even though the color is common in nature. How did the “green” movement start? Learn author Rachel Carson’s role. See a gallery of creations in Artists, such as Teresa Barkley’s “Freedom From Hunger” or Susan Lenz’s “Wasted Words.”

Speak Out

Who is your favorite celebrity and why?

Speak Out Here!

Dear Amy: How does the brain work? — Natasha, Rogers, Minn.

Dear Natasha: The brain is the command center of the body. It controls everything you do, and specific areas of the brain are responsible for different functions. Have you ever wondered why you don’t need to remember to breathe? The part of the brain called the brainstem is in charge of such automatic functions as breathing and keeping the heart beating. Other areas have specialized functions, such as speech, hearing or memory.

The brain sends and receives signals from the body through the nervous system. Transmission of these signals travels as fast as 120 meters per second or about 268 miles per hour! Your brain uses these signals to control the body or receive information from it, such as visual information from the eyes. Although the eyes detect visual data, the brain actually does the “seeing.” If the optic nerve is damaged, it can lead to vision problems or even blindness. To learn more about how the brain and nervous system work, visit Neuroscience for Kids, faculty.washington.edu/chudler/introb.html. This site has answers to all sorts of questions, including advice for keeping your brain healthy.



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