Showing results for "R" in Science & Technology

In 1949, Dorothy Vaughan became the first African American woman to lead a team at NASA's Langley Research Center. Her work as a mathematician was an important part of helping the United States explore space. Learn more about Vaughan's life as a famous mathematician!

Have you ever visited the Grand Canyon? As one of the world’s seven wonders, millions of people have visited this landmark. Have you ever wondered how it was formed? Learn how the 3 "R"s- Rock, Rivers, & Erosion, have led to the formation of the Grand Canyon and the changes it undergoes in present day.

What is it like to live in or visit South Africa? What makes South Africa’s culture unique? Explore the geography, traditions, and daily lives of South Africans.

The states of matter (solids, liquids, and gases) are explained and demonstrated. Includes an experiment to try.

Explore the concepts of motion by learning about movement, speed, force, and inertia.

Discover the powerful world of energy! Budding scientists learn about the different types of energy, including chemical energy, kinetic energy, and solar energy.

A temperature can be hot or cold, and can be measured by a thermometer. Use Fahrenheit or Celsius to take the temperature of items.

Learn about the air around you, and find out about oxygen, the atmosphere, gases, and pollution.

They’re explosive and invisible. They’re extinct and never-ending. What are they? Science mysteries, of course! Get ready to crack the cases and the real science info wide open. You might need your goggles for this one.

Pygmy marmosets are the tiniest members of the monkey family. From food to homes to behavior, learn the facts on these pint-sized primates.

Long-limbed spider monkeys are noisy members of the monkey family. From food to homes to behaviors, learn the facts on these tree-swinging primates.

Toucans fill the rain forests with chatter. Learn all about these colorful birds and their habitats in Toucans.

Piranhas lurk in the Amazon River. Learn all about these sharp-toothed fish and their habitats in Piranhas.

In the 1800s, the moist soil of the Midwest would stick to plow blades, stopping the farmers as they plowed. Young blacksmith John Deere knew about the problem, so he designed and built a self-scouring plow. With this small start, he founded the famous farm implement company Deere & Company and started down the road to success.

Pino Omino, per gli amici Mino, per i nemici Vino, ha combinato un bel casino alla ditta di balocchi Oplallà® e ora suda come una lumaca di fronte al Santo Tribunale del Tragico Divertimento Pernullabuffo. Accanto a lui c’è Vincenzo, il tardigrado improbabile, arrivato dalle profondità del cosmo per soccorrerlo con la sua paradossale versione dei fatti: di chi è, in realtà, la colpa? Di Omino, o piuttosto del caso che l’ha condotto sino a lì?

Hurricanes... Just the word brings to mind the power of these natural disasters. Humans watch the news and know of impending arrival. We board up windows and gather supplies. We might huddle in our homes or go inland. Then we wait for the storm to arrive. But what do wild animals do? Do they know when a storm is coming? If so, how do they prepare? This audiobook explains how nine animals sense, react to, and prepare for a hurricane.

Huracán...sólo la palabra nos trae en mente el poder de estas catástrofes. La gente mira las noticias y sabe de la llegada inminente. Tapamos las ventanas y juntamos provisiones. Nosotros podríamos acurrucarnos en nuestras casas o ir tierra adentro. Entonces esperamos a que la tormenta llegue. ¿Pero, qué hacen los animales salvajes? ¿Saben ellos que una tormenta viene? De ser así, ¿cómo se preparan? Este libro explica como nueve animales, se dan cuenta, reaccionan, y se preparan para un huracán.

Three species of bear inhabit North America: the grizzly, the polar bear, and the black bear. But the American black bear is truly North America's bear, found only in North America. Black bears range from Canada to Mexico, from New England to California.

Follow a hatchling's treacherous journey from nest to sea. Longtime science writer Stephen Swinburne creates an engaging first-person narrative from the sea turtle's perspective.

In the past and present, Black people have developed new products and created new processes in STEM (science, technology, engineering, and mathematics). Their work has addressed problems such as medical and healthcare inequality and the negative impacts of climate change. Celebrate the people who have made great achievements in STEM, including PlayVS founder Delane Parnell, astronaut, doctor, and engineer Mae Jemison, and environmental justice leader Peggy Shephard.