Showing results for "Ray" in Science & Technology

What do you know about rays? Beginning listeners will get their feet wet with these literacy-building introductions to ocean animals.

With X-rays, doctors detect problems human eyes can't see. X-rays are a form of invisible radiation. This powerful medical technology helps experts look inside the body and even treat illnesses. But early on, X-rays caused harm too, as people used them without enough protection. This history covers the discovery of X-rays, the development of safety standards, and the rise of more powerful and precise X-ray machines. Find out how modern doctors create digital images of the inner body—even 3D images of our brains!

Carefully leveled text engages young listeners in learning about rays. Age-appropriate critical thinking questions help build nonfiction learning skills.

¿Qué es eso deslizándose por el agua? ¡Es una manta ray! Obtenga más información sobre estos peces planos. Las preguntas de pensamiento crítico ayudarán a introducir a los oyentes jóvenes al género de no ficción con un enfoque en un animal marino.