Articles for Grade 3

A holiday honoring a math constant may not seem very exciting. But pi ("π") Day, observed annually in the US on March 14 (3/14), is an exception. The celebrations usually begin with activities centered around pi — the ratio of the circumference of a circle to its diameter — widely recognized as 3.14. However, they usually end with a slice or two of delicious pie....

Firefighters in Texas are battling a number of wildfires in the state's northernmost area called the Panhandle. The destructive blazes have scorched over a million acres, killed thousands of cattle, and charred crops. The fires have burned over 500 structures, melted lamp posts, and split power lines in half. Two residents have been killed, four firefighters injured, and thousands evacuated....

An 8-year-old has become the youngest player ever to defeat a grandmaster (GM) in classical chess. For those unfamiliar with the term, GM is the highest title a chess player can attain. Ashwath Kaushik achieved the incredible feat on February 18, 2024, after beating 37-year-old Jacek Stopa in round four of an international chess competition in Switzerland. Kaushik went on to finish in 12th place, but his victory over Stopa was the talk of the tournament....

Winter is almost over — at least when it comes to the clocks. On March 10, 2024, most Americans will mark the start of "Daylight Saving Time" (DST) by moving their clocks ahead an hour. The time change will result in a loss of sixty minutes of precious sleep or play time on Sunday. However, it will allow for longer days during the spring and summer months....

Ramadan is the ninth and most sacred month in the Islamic lunar calendar. During this month, Jibril (the archangel Gabriel in the Judeo-Christian faith) unveiled the first verses of the Quran — Islam's holy text — to Prophet Muhammad. Ramadan's start date is determined by the appearance of the new crescent Moon. This year, it is expected to begin at sundown on or around March 11, 2024....

On February 27, 2024, biologists at San Francisco's California Academy of Sciences revealed that "Mirage," its resident titan arum, or corpse flower, had bloomed. The massive plants bloom once every seven to ten years. The flowers last just one to three days and emit a pungent odor reminiscent of rotting flesh. It is no wonder that titan arums are deemed the "world's stinkiest flower."...

March marks the start of Women's History Month. The month-long celebration highlights women's contributions to American history, culture, and society. This year's theme is "Women Who Advocate for Equity, Diversity and Inclusion." Here are two trailblazers who dedicated their lives to fighting for equality....

Researchers have always suspected that the Amazonian rainforests were once home to ancient cities. However, looking for remains of urban structures in the thick, remote forests was a difficult endeavor. But the use of Light Detection and Ranging, or Lidar, has been a game changer. The remote sensing technology uses laser light to help identify human-made features on the ground, such as walls, roads, or buildings. It has led to several exciting discoveries. The latest to be revealed is a network of 15 ancient settlements in the Upano Valley of eastern Ecuador in South America....

A week after launching aboard a SpaceX rocket, the uncrewed Odysseus spacecraft gently landed near the Moon's south pole at 6:32 pm ET on February 22, 2024. The 14-foot-tall (4.3 meters) lander was developed and flown by Texas-based Intuitive Machines. It is the first privately-built spacecraft to make a moon landing. More significantly, Odysseus is the first American lander to successfully touch down on the lunar surface since Apollo 17 in December 1972....