March 12, 2010
download KTEH activity book

 

Did you get a KTEH activity book and want to check your puzzle answers?

wordgirl

WordGirl Cryptogram Answer

WORDGIRL SOLVES ALL OF HER SLIPPERY PREDICAMENTS WITH HER DAZZLING VOCABULARY!



ruff ruffman

Ruff Ruffman Design Your Own Copter Challenge

When you drop your copter, its blades hit the air. The air pushes back on the blades, giving each one a little push forward. Notice how the blades are not exactly across from each other. This means that one blade is nudging one side of the copter round while the other blade is nudging the other side around. These two pushes work together to spin the copter around its center point. The spinning blades hit a lot of air on the way down, and all this air pushes back on the blades. The more air you can get to hit your blades (i.e., the more push-back you can create), the slower your copter will fall.
Download the full Copter Activity!

The Latest Headlines from DOGONEWS.com

  • Get Up Close And Personal With . . . . . Creepy Crawlies

    While we have all heard of fleas and dung flies, very few of us have seen them up close - and we mean really up close! The photos were taken by scientific photographer Steve Gschmeissner, from Bedford, using a Scanning Electron Microscope, which not only magnifies imags by a million times, but also, builds them up in 3D. In case you are wondering, the picture above is the head of a honey bee!

    >> READ MORE

  • Mexican Billionaire Carlos Slim Is The Richest Man On Earth!

    After reigning the roost for 14 of the last 15 years, Microsoft tycoon, Bill Gates, has finally been usurped by Mexican billionaire Carlos Slim, as the World's richest man!

    >> READ MORE