Open Curriculum: Circulatory System

Students explore mathematical operations while studying nutrition. In this physical fitness lesson, students explore calories, pulse rate, and the circulatory system. Students use mathematical data to create a healthy physical fitness...

Bacteria get more resistant to antibiotics every year. Learn the reason for this pattern and how scientists are addressing the problem in a six-week unit. Learners analyze different types of bacteria and their adaptations.

Students learn about the organs and major functions of the digestive system, the roles of intestinal bacteria, and about diseases of the digestive system.

In this resource, students learn the major role of the muscular system, about muscle fibers, the role of ATP and calcium in muscle contraction, how muscles move bones, and how muscles respond to aerobic and anaerobic exercise.

This illustrated article helps students understand how the respiratory system works.

Students will be able to describe mechanical, chemical, and biological barriers that keep most pathogens out of the human body.

Learn about the development of fetal organs and systems during the prenatal period.

After studying this article, students will be able to identify the functions and structure of bones, types of bones, bone development, parts of bones, types of joints, and bone disorders.

This article will help students learn how to describe the lymphatic system and its functions in the immune response, explain the role of antigens, describe a humoral immune response, identify roles of different types of T cells, define...

If you've ever had an injection, the horseshoe crab protects you from infection! Young marine biologists discover how scientists use the unique physiology of the horseshoe crab in medicine with a thought-provoking video. The narrator...