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Pinterest. Pearltrees videos. FOURTH GRADE PEARLS. Pearltrees. Week in Pictures - Award Winning Photo Journalism from Around the World - Watch this Week in News - MSNBC.com. Fdv.uni-lj. Games. Would you put this 6-year-old in handcuffs?

Cool Math 4 Kids Lessons, Games, Activities - free online cool math lessons, cool math games, fun math activities, math flash cards to print, calculators and more! The Cardiovascular System Game. Games.

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The Top Five Quotes from the American Revolution. Quotes About American Revolution (41 quotes) Kongregate: Play free games online. Constitution for Kids » Preamble to the United States Constitution. We the People, of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.

Constitution for Kids » Preamble to the United States Constitution

This opening statement to the Constitution explains the reasons our Framers crafted our Republican form of government, to replace the Articles of Confederation. The Constitution was drafted over a period of about six weeks, and then was eloquently phrased by the Committee of Style – headed by Gouverneur Morris of Pennsylvania. The Preamble is the explanantion, but it is not law. Math.

Math

Multiples. How the Body Works Main Page. Cell-plant. Digestive System. Respiratory System. The Pathway Air enters the nostrilspasses through the nasopharynx, the oral pharynxthrough the glottisinto the tracheainto the right and left bronchi, which branches and rebranches into bronchioles, each of which terminates in a cluster of alveoli Only in the alveoli does actual gas exchange takes place.

Respiratory System

There are some 300 million alveoli in two adult lungs. These provide a surface area of some 160 m2 (almost equal to the singles area of a tennis court and 80 times the area of our skin!). Breathing. The Human Heart: An Online Exploration from The Franklin Institute, made possible by Unisys. Your browser does not support JavaScript.

The Human Heart: An Online Exploration from The Franklin Institute, made possible by Unisys

<a title='RSS-to-JavaScript.com: Free RSS to JavaScript Converter' href= to read the latest news</a>. From the moment it begins beating until the moment it stops, the human heart works tirelessly. In an average lifetime*, the heart beats more than two and a half billion times, without ever pausing to rest. Like a pumping machine, the heart provides the power needed for life. This life-sustaining power has, throughout time, caused an air of mystery to surround the heart.

Your Digestive System. Science.

Science

Body Basics. Pearltrees tips. Science. History Files - The Stockyards. The Birth of the Chicago Union Stock Yards The rise and dominance of Chicago's Union Stock Yards marks a significant period in the city's economic and social history.

History Files - The Stockyards

In 1848, when Chicago was only a connection for transporting livestock from the West to the rest of the country, small stockyards such as Lake Shore Yard and Cottage Grove Yard were scattered throughout the city along various rail lines. Union Stock Yards, 1866. (CHS ICHi-06898) Several factors contributed to Chicago's need for a larger, more centralized, and efficient stockyard. View of Union Stock Yards taken from 47th Street and Loomis Street, 1924.

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Multi Genre 2. Teacher Resources. S Guide: Grades 3-5. Your Neighborhood and Beyond | Our Nation | Historical Documents | Branches of Government How Laws Are Made | National versus State Government | Election Process | Citizenship Symbols of U.S.

s Guide: Grades 3-5

Government | Games and Activities | Glossary | U.S. Government Web Sites for Kids. Every Photo Tells a Story/writing prompts/writers block. S Books - Kids Authors & Illustrators. E.

s Books - Kids Authors & Illustrators

B. White, the author of such beloved classics as Charlotte's Web, Stuart Little, and The Trumpet of the Swan, was born in Mount Vernon, New York. He graduated from Cornell University in 1921 and, five or six years later, joined the staff of The New Yorker magazine, then in its infancy. He died on October 1, 1985, and was survived by his son and three grandchildren. Mr. During his lifetime, many young readers asked Mr.