Henry Carter Hull

En Estados Unidos, la cantidad de dinero que las personas ganan por hacer el mismo trabajo no siempre es la misma. Hasta hace poco no era ilegal pagarles más a los hombres que a las mujeres por el mismo trabajo, y la historia de racismo del país ha dado origen a grandes disparidades en el acceso a la riqueza entre las personas blancas y las negras, que persisten aún en el siglo XXI. Conoce cómo se originó la desigualdad en los ingresos, por qué...

In this eye-grabbing book, readers learn all about telescopes. Short paragraphs of easy-to-read text are paired with plenty of colorful photos to make reading engaging and accessible. The book also includes a table of contents, fun facts, sidebars, comprehension questions, a glossary, an index, and a list of resources for further reading. Apex books have low reading levels (grades 2–3) but are designed for older students, with interest levels of...

From roaring oceans to trickling streams, water covers seventy percent of our planet! But did you know that less than one percent of Earth's water is usable by humans? Most water on Earth is salt water. It can't be used for drinking, bathing, or growing plants. We need freshwater. Yet about two-thirds of Earth's freshwater is frozen solid at the North and South Poles. And the water we can access-from lakes, rivers, streams, wetlands, or underground...

Introduces early readers to environmentalist concepts including single-use plastics and upcycling, and what they can do to help the environment. Features real-life examples of kids like Lily Platt who have made a difference.

Why did the Mexican Cessation happen? Surely, it was an even that didn't just happen overnight. There were details leading to a war. In the War with Mexico, what were the events that lead to the battlefield? What were the relationships between Texas and Mexico? Did these problems aggravate when Texas was annexed to the US? Read the answers today!

Do you know how to create an algorithm? These cats sure do! Author Brian P. Cleary and illustrator (and coding hobbyist) Martin Goneau offer a fun and accessible introduction to algorithms with the help of the CATegorical cats.

How do you pick extreme sports GOATs? Is it snowboarder Chloe Kim or skateboarder Tony Hawk? Or maybe it's BMX legend Dave Mirra. With so many sports, how do you choose? It comes down to stats, history, and hunches. Read more about some of the legends of extreme sports and see if you agree that they're the greatest of all time.

Albert Einstein is probably the most well-known physicists who ever lived. Aside from being one of the greatest minds in scientific history, he was also a kind, caring man. Readers will learn about Einstein's life as a scientist and his many accomplishments--from explaining photoelectric effect to Brownian motion and his theories of relativity--in this appealing biography that features stunning photos, easy-to-read text, intriguing facts, an accommodating...

Vivid photographs and easy-to-read text explore the science behind how blizzards form, where they most commonly occur, and how people can best stay safe during one. Features include a table of contents, two infographics, fun facts, a sidebar, Making Connections questions, a glossary, and an index. QR Codes in the book give readers access to book-specific resources to further their learning. Aligned to Common Core Standards and correlated to state...

Robots help search and rescue teams take quick action during disasters such as earthquakes and volcanic eruptions. Search and rescue robots can crawl through small spaces, fly high over forests, and go into areas unsafe for first responders. Learn about robots such as Spot, micro-VGTV, and EMILY, and meet the creators of these amazing robots.