Assign this text to deeply engage your students!
Actively Learn provides free ELA, science, and social studies digital content—short stories, primary sources, textbook sections, science articles, novels, videos, and more—and embeds them with standards-aligned assignments to assign immediately or customize for your students.
Whether you’re looking for “The Tell-Tale Heart,” The Hate U Give, “The Gettysburg Address,” or current science articles and simulations, Actively Learn is the free go-to source to help you guide your students' growth in critical thinking all year.
Plasma, the fluid part of the blood, is mostly made up of water but also contains dissolved proteins, glucose, ions, hormones, and gases. Red blood cells carry oxygen, while white blood cells defend the body against infection by bacteria, viruses, and other diseases.