Learn about one of the world's most mysterious pieces of written text, the Voynich manuscript, which has never been deciphered.

Ever wonder about those mysterious crop circles that show up in fields across the world? Engage in a fun conversation about this interesting type of geoglyph.

Have you ever wondered what keeps the moon in orbit? Newton's first law gets a quick introduction, too, in this worksheet for kids. Check it out!

Located on the National Mall in Washington D.C. the Lincoln Memorial honors our 16th president.

Children will learn about the fascinating history of the automobile in America, dating all the way back to the 1700s.

Can a frog really swallow quail shot? Explore exaggeration with this reading exercise on Mark Twain's "The Celebrated Jumping Frog of Calaveras County."

Readers practice analyzing a character in a work of fiction as they read a passage from L. Frank Baum's The Wonderful Wizard of Oz.