Why do some things float while others sink? Readers learn about buoyancy and density, guess what type of objects will float or sink, and conduct a floating experiment of their own! Great for STEM and content literacy.

The Greeks and Romans were the first to use a fork, but it was shaped like a claw and used in the kitchen for cooking, not for eating, which was done with their fingers. Later on, the Italians changed the claw to a spear-like fork with two prongs to pick up food, but they still used their fingers to eat. Over time the fork found its way to the tables of King Henri III and King Louis XIV, mostly as an ornament. By the end of the 17th century the fork looked like it does today and it was being used to eat. Now centuries later we have all kinds of forks for fish, cheese, salad, dessert. Little Inventions by Raphaël Fejtö is a series of kid-sized books about objects that children encounter every day with little thought of how, where and when they were invented. In fact, the beginnings of these common objects are fascinating and their true stories are told here in amusing anecdotes and charming illustrations. Each book closes with a memory game, making them useful for early reader groups.

It's totally about tech. Fun, hands-on projects bring STEAM learning to life. Simple, step-by-step instructions paired with colorful photos makes making fun. Follow along with four terrific tech projects. Then, learn how people are using technology to make the world easier and a little more fun--just like you!

Human history has always been shaped by technology, but AI is like no technology that has come before it. Unlike the wheel, combustion engines, or electricity, AI does the thing that humans do best: think. While AI hasn’t reproduced the marvelously complex human brain, it has been able to accomplish astonishing things. AI has defeated our players at games like chess, Go, and Jeopardy!. It’s learned to recognize objects and speech. It can create art and music. It’s even allowed grieving people to feel as though they were talking with their dead loved ones. On the flip side, it’s put innocent people in jail, manipulated the emotions of social media users, and tricked people into believing untrue things. In this non-fiction book for teens, acclaimed author and teacher Martha Brockenbrough guides readers through the development of this world-changing technology, exploring how AI has touched every corner of our world, including education, healthcare, work, politics, war, international relations, and even romance. This is essential reading for anyone who wants to understand how artificial intelligence got here, how to make the best use of it, and how we can expect it to transform our lives.

Ready to learn how to code a game? Get an introduction to programming with this fun and accessible guide. Learn HTML and JavaScript. Design and build five interactive computer games. Create cool graphics. Code simple artificial intelligence. This appealing guide, covering essential coding concepts, offers an ideal introduction to all these activities and more. By following simple step-by-step instructions and completing five exciting missions, aspiring programmers are invited to code well-known games such as tic-tac-toe and table tennis, then customize their projects to test their skills.

Read all about wheels and axles and their many uses in this book. Children will be thrilled to learn of their many uses, from doorknobs to the insides of a clock. There are wheels that move, turn, steer, and serve as gears.

"A shadowy figure takes shape in a dark, old house. Was it just your imagination? Or was it a ghost? Ghost hunters investigate ghostly encounters with thermal cameras, EVP recorders, magnetic field detectors, and other advanced gear. Get an inside look at all the high-tech tools used to study hair-raising hauntings"--

The Romans made the first important discovery about vision. They found that you could see better by looking through a bowl of water, which made what you were looking at bigger. An English monk used glass to make a shaped magnifying device. Over time, these glass lenses got better, but the biggest problem was how to keep them on your head. Designs went from balancing the glasses on your nose to tying them with a ribbon, holding them with a handle, and then finally using wire arms that hook behind the ears. Little Inventions by Raphaël Fejtö is a series of kid-sized books about objects that children encounter every day with little thought of how, where and when they were invented. In fact, the beginnings of these common objects are fascinating and their true stories are told here in amusing anecdotes and charming illustrations. Each book closes with a memory game, making them useful for early reader groups.

We use a lot of energy to power our lives, from our homes and cars to our tablets and handheld games. The challenge facing us today is finding sustainable energy methods that will ensure a green future. There are seven different types of green energy and they are the only types that don't pollute our Earth. We have learned how to harness the power of the sun, wind, water, and Earth. And technological innovations have allowed us to put these alternative energies to work in our everyday lives.