Grade 3

What do you get when you combine a poem and a joke? A limerick! These five-line rhyming poems are funny, silly, and sly. Award-winning author Brian P. Cleary explains how limericks work—and… Read More →

In 1936, the New York Yankees wanted to test a hot prospect named Joe DiMaggio to see if he was ready for the big leagues. They knew just the ballplayer to call—Satchel Paige, the best… Read More →

Sylvia Freeman is ready to start fifth grade at Fork Hollow Elementary. Being the new kid will be a challenge, but she's counting on her great-grandmother and best friend, Miz Lula Maye, to… Read More →

Jaclyn Roessel live in Kayenta, Arizona, on the Navajo reservation. Like most young girls, Jaclyn has many interests. She likes her math class, she plays basketball and volleyball, and she… Read More →

Born 20 years apart, Sophia Smith and Abby Wambach have both ruled the soccer field as forwards. Their skills have even led them both to the FIFA Women’s World Cup! But who is better? Compare Read More →

Sophie has some exciting news to share with her good friend Jacob. Jacob has some big news too. Sophie learns that sometimes listening to other people's feelings and stories is more important Read More →

Sophie was always ponders big questions, like Why is the sky blue? Why are raindrops wet? What are stars made of? But when Sophie starts school, there's a wobbly feeling in her tummy and she… Read More →

Grownups say, “Be on your best behavior." But in the animal world, rudeness sometimes rules the day! Scarlet kingsnakes lie; they pretend to be venomous coral snakes to scare off predators.… Read More →

What does S.O.S. mean? Who might use S.O.S.? Sometimes we have to do things we don't think we can do. Have you ever had to do that? What happened? How did you feel before, during and after… Read More →

Our world is full of sounds. There are people sounds, animal sounds, sounds of nature and machine sounds. Sounds are made by vibrations. Vibrations are movements you can feel but not see.… Read More →

Much of what you experience—from the things you see to the sounds you hear—travels to you in waves. But how do sound and light waves work? For thousands of years, scientists have been testing Read More →

Without sound there would be no chatting, laughing, bird song, or listening to music. But what exactly is sound and how do our ears and brain ensure that we get to enjoy it? In this… Read More →

An interactive introduction to musical instruments with 50 original compositions to listen to—from the kazoo to the bassoon. What does a double bass or a sitar sound like? What's the… Read More →

South America is home to the world’s largest rain forest. The Amazon River runs through it. More than 350 millions people and a huge variety of plants and animals live there. Learn more about Read More →

Where in the world can you see the world's largest rodents, galloping around in herds? Where can you find the world's largest river or the highest waterfall? The continent of South America! Read More →

Pack your bags! We’re headed to South Korea. On this whirlwind tour, you’ll learn all about the country’s landscape, culture, people, and more. We’ll explore coastal islands and mountain… Read More →

Have you ever watched video of astronauts walking on the moon? Margaret Hamilton programmed software that helped get them there. As a girl, Hamilton loved math and science. She grew up during Read More →

Robots are out of this world! Space robots go places that humans aren't able to explore. Learn how these robots are made, what they do, where they go in outer space, and much more. Robots… Read More →

Explore outer space through interactive augmented reality experiences! Outside the International Space Station, temperatures can reach 250˚F (121˚C) in sunlight and drop to -250˚F (-156˚C) in Read More →

Space is the name for the areas of the universe that are between planets, stars, and galaxies. Right now, there are people living in space; they are astronauts. Astronaut is an old word… Read More →