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Did you know that in the late nineteenth century, the United States military used bikes to travel from one place to another? They were a new invention and a quicker way to travel than walking. Lieutenant James Moss and twenty soldiers tested the durability of bikes by traveling through six states from the West to the Midwest to prove its usability in the military.

Safety is important, no matter the location, whether on land or on sea! Children can explore the many boats that are used on the ocean. Tugboats, police boats, ice breaker boats, and rescue boats, all have a different purpose for helping people be safe or to provide rescue on the sea.

Have you ever wondered why there are different shaped footprints in the mud or snow? An animal may be nearby! Discover the many animals that are in your environment! Every animal creates different tracks. Some tracks are large, and some tracks are small. Some animals may have five toes while others may have only a few. How many animal tracks can you name?

Unlock the transformative power of curiosity with "5 Steps to Asking Better Questions." Dive into a practical guide designed to elevate your communication skills, enhance your relationships, and sharpen your problem-solving abilities.

Did you know that Congress signed the Declaration of Independence on the Fourth of July? In this short play, learn more about the Declaration as Thomas Jefferson himself tells his grandchildren the story of its creation.

When on land, rivers, lakes, and oceans appear flat. With the aid of satellites, these bodies of water appear to have many designs! Explore the art of nature and how satellites detect the temperature of the many bodies of water around the globe.

He's a warrior of mayhem, a broken alien dragon shifter, and he needs to claim me to be whole again. Taken from everything I knew and dropped in the middle of an alien prison maze, what's a girl to do? Get stuck in of course! My assistance is needed everywhere and I love to help. As for all the huge alien dragon shifter warriors, the Sarkarnii, who rule this part of the maze? I give them a wide berth. All except one.

Summer has returned to the beautiful beach but Jake is mourning his grandfather. Gram gives him Grandpa's knife and a wooden seagull to finish carving, but Jake doesn’t think he'll be able to finish what Grandpa started. Walking along the beach for inspiration, Jake sees a special gull he's named Spirit.

Sherlock Holmes is on the case! A crime is committed at the British Museum, and Holmes must use his famous detective deduction skills and work together with John Watson to parse out the clues and find the culprit. When surprise guest H.G. Wells makes an appearance, however, everything Holmes knows to be true is thrown into question!

Learn about how the body processes food by following Joe's pizza lunch—from the plate to his mouth to his stomach and beyond. The nutrients from food are absorbed in the small intestine, which are delivered to rest of the body.

Aluminum was once more valuable than gold. A breakthrough in refining aluminum from rock transformed it from rare matter to sandwich wrapper. In this science story, you'll learn how two chemists, Charles Hall and Paul Héroult, solved the problem.

Can you imagine visiting a doctor's office for an illness or injury, but getting treated by a robot instead? According to some researchers, this could be the reality in the not too distant future. Ongoing research into artificial intelligence and its use in medicine might someday produce robots that will work alongside human doctors and nurses to deliver the best health care possible.

In this adventurous tale of historical fiction, Edward Whymper's struggle to scale the Matterhorn results in triumph and loss, and inspires courage in a young blind friend. As an old man, Emile Favre tells how this famous mountain climber's quest led him to dream beyond his small village in Italy.

In the late 1700s, young Louis Braille overcame his disability by inventing "night writing," a system of raised dots to help blind people read. This alphabet of raised dots allowed sightless people to live more independent lives.

During the Civil War, the lines between Union and Confederate forces were impassable for everyone, even pacifist Mennonites—unless you were sly like a fox. In this adventurous story of historical fiction, discover how a courageous boy finds a way to help his community while respecting his beliefs.

Native Americans like Squanto provided good fortune for the Pilgrims of colonial America. During this period, tensions were high between Europeans and the Native Americans in present-day Massachusetts. Squanto, Samoset, and Hobbamock served as interpreters and ambassadors, establishing peaceful alliances between these two groups.

Injured by a cannonball, James Edward Hanger was the first amputee of the Civil War. Determined to find a better solution than a peg leg, he worked to develop his own artificial limb company. He even continued working past retirement, providing Hanger Limbs for victims of World War I.

Inventing is all about ideas—ideas for making products better or creating new ones. To put these ideas into action, young inventors need tools for tinkering. Find out how to put together your own inventor's workshop with simple tools and common household objects.

Many immigrants of various cultures have passed through the port city of Philadelphia before they adapted to the New World. William Penn guaranteed religious freedom to newcomers, which brought many persecuted peoples, such as Quakers, Mennonites, and refugees to the area, and that's only a smart part of the story of Philadelphia.

Confederate Major Absalom Grimes carried letters between Civil War soldiers and their families, and became an expert prison escape artist in the process. Hear about Grimes' amazing life of adventure in this historical nonfiction story.