Articles for Grade 7

While world population continues to increase, our freshwater supplies appear to have stagnated and in some cases even trickled to a halt. Residents all the way from California to Brazil are battling multi-year droughts. Earlier this year, some citizens of Sao Paola were so desperate that they drilled through basements and parking lots to try access groundwater. Experts estimate that there are currently a billion people in the world that lack clean drinking water....

An invisibility cloak might be easy to come by if you are a young wizard like Harry Potter, but developing such a device for the real world has proven to be a challenging task for scientists. Over the years, there have been numerous attempts. While each version has been slightly better than the previous one, none has come even close to the original 'created' by J.K. Rowling....

American artist Stan Herd is known for numerous things - Oil and watercolor paintings, incredible murals, and most of all, stunning crop art. In fact, the maestro is considered the pioneer of this method of artistic expression that involves the skillful arrangement of plants, soil, and rocks, to create massive masterpieces that are best viewed from a higher vantage point, like a hill or an airplane....

Styrofoam, a plastic made of expandable polystyrene foam (EPS) is a useful invention. In fact one could call it almost too useful! The lightweight and buoyant plastic can be used for a myriad of things from thermal insulation to disposable plates & cups, packing material, and even to build boats! The only problem is that the versatile product is almost impossible to recycle....

For U.S. residents, fall and pumpkins go hand in hand. Some use the fruit to make delicious soups and bread, others to carve out scary jack-o-lanterns. Then there are those that spend months growing giant-sized gourds that they use to compete at pumpkin weigh-offs. While there are numerous competitions held across the country, the 'Super Bowl' takes place at Half Moon Bay, CA which prides itself on being the 'Pumpkin Capital of the World.'...

On October 3rd, East Coast residents were relieved to hear that Hurricane Joaquin which had been hurtling towards the U.S., was no longer a threat. According to meteorologists, the hurricane that was weakened to a category 3 after battering the Bahamas, would likely remain out to sea instead of ramming into the coastline as had been previously thought....

On August 3rd, 1492 Italian explorer Christopher Columbus set sail from Palos de la Frontera, Spain, to seek out a western sea route to China and India. However, the explorer and his crew never made it to the gold and spice islands of Asia. Instead, about two months later, on October 12th, they landed on a small island in the modern-day Bahamas that Columbus claimed for Spain and named San Salvador....

Thanks to its carved topography, researchers have always suspected that Mars was once home to several rivers, lakes, and perhaps even oceans. There has even been some speculation about the existence of frozen water deep beneath the ground. However, finding evidence of liquid water in the present day, has been a little elusive. That is why NASA's September 28th announcement that confirmed the detection of liquid brine on the Red Planet caused so much excitement....

According to ancient Polish folklore, during the final days of World War II, Nazi officials dispatched a train filled with stolen treasure from what used to be the East German city of Breslau. They were hoping to protect it from the fast approaching Soviet Red Army....