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Did you know that electric current can be controlled? Have you ever wondered how that might be done? Transistors can act as amplifiers, taking in a small current and sending out a larger one, Read More →

What do programs tell computers to do? And how are they written? Programs are instructions that computers follow. Learn about different programming languages, coding rules and bugs, and how… Read More →

Have you ever taken something apart to see how it works? As a child, Grace Hopper took apart five alarm clocks in a row, trying to figure out how all the pieces fit together. As an adult, she Read More →

Do you enjoy performing experiments or studying how the universe works? Growing up in China, Chien-Shiung Wu enjoyed learning about science. As an adult, she earned her PhD in physics and… Read More →

How can you stay safe while surfing the Internet? The internet is an exciting world, but there are things you should be careful of as well. Find out how information is shared online, how… Read More →

Do you enjoy playing computer games or learning programming code? As a child, Ada Lovelace loved learning about math and science. As an adult, she used that knowledge to create the first… Read More →

Make a battery of mini-launchers designed to fling small objects safely. All you need are everyday items and some adult help. Then take aim and launch! Make several and use them on your own… Read More →

Perch on top of a skyscraper with the Stickmen, then descend to street level and travel below to see all the layers of a city. But beware, some layers are smellier than others! Follow the… Read More →

Teeter on the edge of outer space with the Stickmen. Then fly down, down, down to atmospheric layers that wrap around Earth. Follow the Stickmen to view the galaxies through the Hubble Space… Read More →

Slide down through the layers of planet Earth, from mountaintops to molten core. Follow the Stickmen to trek down a glacier, descend into a canyon, and burrow down to the base of a volcano.… Read More →

Splash with the Stickmen at the sea's surface, and then dive down through the darkening zones and into the abyss. But don't stop there! Follow the Stickmen to snorkel around coral gardens,… Read More →

Make a set of traps and triggers powered by rubber bands and inspired by real-life devices. All you need are everyday items and some adult help. Choose your target and area of operation, hide Read More →

In 2007 only thirty Amur leopards remained in the wild. Scientists knew they needed to do more to help these big cats. However, details of the leopards' wild lives in their high-altitude… Read More →

Trillions and trillions of microbial cells live on and inside your body. A small number of these microbes are unhealthy germs. But most belong on your body and perform essential jobs.… Read More →

Have you ever been vaccinated against a particular disease? As children, Pearl Kendrick and Grace Eldering both suffered from whooping cough, a life-threatening illness. As adults, they… Read More →

Mira and her dog Popo were bored. Mira decided to look in her big sister's room. She touched the doorknob. Zap! Flash! Mira got a big shock. How did the doorknob make her hand tingle? Read More →

Times are tough for shrimpers and fishers in the Gulf of Mexico. The animals they rely on for their livelihood are harder to find. Every summer a dead zone—a region of low oxygen—emerges in… Read More →

Do you have friends or family members who use Facebook? That social networking website is the brainchild of Mark Zuckerberg. He has helped Facebook grow into a company that has almost one and Read More →

Everyone needs to eat, yet farming is a major cause of pollution around the world. But did you know that certain types of farming create less pollution than others? Or that some types of… Read More →