Week of March 11, 2007

Magical Molecules

Join in some marvelous micro fun at the Molecularium, www.molecularium.com
. Did you know atoms make up every single thing in the world? Click on Downloads to get an eyeful of some everyday substances broken down to their most basic elements. Gallery has beautiful animated pictures of atoms in action. Build molecules like water, carbon dioxide and hydrogen peroxide in the Nanolab, or choose Zoom for a closer look at Earth. This site will show you what you cannot see!

Nominate a cool Web site at www.4Kids.org/nominations

Visit the Featured Web sites to find the answers.

In Transform, what does the solid become?

A liquid
A vapor
A gas


In what year was the Angler's Shrine built?



Who wrote "On Numbers and Games"?
Jon James
Carl James
John Conway



Road Trippin’

If you are worried about another long road trip, let the World's Largest Roadside Attractions at www.wlra.us keep it exciting for everyone in the car. A 500-ton muskie is a hard-to-miss fish in Hayward, Wis. Roll through Jamestown, N.D., to see what an $11,000 concrete buffalo looks like. From animals to condiments, News and Notes will keep you informed with updates on some other oversized attractions. The Super Search Page will help you locate these roadside wonders from coast to coast. Make your next journey one to remember!

Gaggle O' Games

Clever Games for Clever People at www.cs.uidaho.edu/
, invites you to become a super
mathematical master, but without the mind-numbing number crunching. Grab a sheet of paper and try out Rim to see if you can loop your way to a win. Traffic Jam lets you weave your way to unlimited destinations. Find a coloring partner and spar with your crayons in Snort and Col. All the King's Horses will make you want to dust off your old chessboard and get your four-legged friends into the barn before it’s too late! These numbers games are both challenging and fun to play. (This site is no longer available.)

What is your favorite springtime activity?


Speak Out Here!

Dear Amy: What do AC and DC mean, and what is the difference? — Jordan, Pittsburgh

Dear Jordan: Alternating current (AC) and direct current (DC) are types of electrical current. Both electrical systems have uses in our everyday lives. DC is good for transporting electricity across relatively short distances. Batteries use DC to power devices such as a TV remote or a radio. AC is useful in transporting electricity across great distances. When you plug an appliance into an outlet, you are using AC electricity that travels all the way from a power plant to your home. To learn more about how AC and DC systems work, check out www.pbs.org/wgbh/amex/edison/sfeature/acdc.html.

Dear Amy: How far away from the sun is Mars? — Holly, Clarkston, Wash.

Dear Holly: The fourth planet from the sun, Mars, is 1.51 Astronomical Units (AU) or about 141.5 million miles from the sun! Measuring miles in space isn't very practical so scientists measure distances in Astronomical Units (AU). One AU is equal to 149,580,000 kilometers. For a chart of distances between planets and the sun, visit www.idahoptv.org/ntti/nttilessons/lessons2000

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