Kids Homework Help
How does a flashlight work?
By using a battery hooked up to an electrical circuit system.
How does an electrical circuit system work?
A battery has negative electric charges and positive electric charges. If you look at a battery, you will see that there is a + sign at one end and a - sign at the other. The opposite charges are drawn to each other, but without an easy path, they will remain separated. That's where a circuit comes in handy.
A Power-full Bridge
Cells make up you, your friend, your hamster, and your mom's broccoli surprise. If it's alive or ever was alive, it is made of cells. Space scientists looking for life on Mars are trying to find simple cells-- not little green men, and biologists who search for cures to diseases work with cells. Small as they are, cells determine how life unfolds from its beginning to its end.
Circles, squares, pentagons, octagons, polygons, angles, rays, points, and lines, there are so many names to learn in geometry. They may sound strange and new, but geometry is all around you. Your computer monitor's surface is more or less a rectangle, your pencil is roughly a cylinder, and, viewed from the top, the cable from your mouse to the computer, is a line segment. Once you start thinking about geometric shapes, you'll find them everywhere.
What kinds of people settled the new lands of America? They had their own ideas about laws, religion, and what makes a good government. They were, in a word, independent.
In 1776, England was faraway, and people on this side of the Atlantic were heartily sick and tired of paying taxes on top of taxes to finance England's empty treasury. They were tired, too, of losing money by having the Crown interfere with their trade overseas. The men in the assemblies shouted that King George was a tyrant, so the King's men stopped the assemblies. When they still protested, the King brought in the army, making the colonists put them up in their houses. Any crimes the soldiers committed against the colonists were handled in the King's court by the King's judges.
Rome grew from a small band of villages in central Italy to the greatest empire of its time. Roman law and sciences spread throughout the Western World, changing forever the ways of the Europeans and North Africans. Romans built coloniae (colonies) on their western frontier by very strict standards, making certain that the people who lived there knew they were a part of the Empire. The ruins of Roman forts and bath houses can be found in England, at the edges of Roman rule, and the parts of the great Roman roads can still be seen today.
In 1800, the land held by the new United States was small compared to what was called Louisiana. Louisiana was named for King Louis XIV. It was part of a large claimed area in the New World called New France. It stretched from the Great Lakes to the Gulf of Mexico and from the Appalachian Mountains to the Rocky Mountains.
By Jane Kosa
Pocahontas, the Powhatan princess who befriended the Jamestown colonists, married the Englishman John Rolfe in 1614, and is believed by many to have saved John Smith's life -- that is why the world knows the Powhatan Confederacy. Her father, Powhatan, almost alone, united the small scattered Algonquian tribes of present-day Virginia and Delaware into a thirty tribe group in the late 1500s. We know this group as the Powhatan Confederacy. The Confederacy included 128 Algonquian villages and 20,000+ people at its peak in the early 1600s.
Twenty years before Jamestown was founded, over 100 women, men, and children came to Virginia to try their luck at starting a colony. They arrived on the stormy shores of what we know now as North Carolina. They were not the first to land there. Two years before, another group of colonists, all men, gave up trying to settle Roanoke Island and sailed back to England. The supply ships arrived too late to save the abandoned first colony, but they left behind fifteen soldiers to mind the fort who soon vanished into the wilds, driven off by an Indian attack.
When creativity is harnessed for useful ends, that is when we get amazing inventions. Can you think of a better computer? Somebody did. Otherwise there would only be a few of them; they would be really slow--and they would take up entire rooms! Or, how about a cell phone? Those were inspired by the communicators on the original Star Trek series.
Virginia educators (and librarians!) are very interested in helping kids realize their potential in the STEM (science, technology, engineering and math) fields. Indeed, Virginia has a history of producing some very inventive people.