This thorough resource provides listing of ten unique characteristics peculiar to the cardiovascular system along with an examination of these ten factors individually.

William Harvey, doctor during the Age of Enlightenment, challenged mainstream understanding of the heart and the circulation of blood. Read about his early education and his scientific inquiry.

A detailed overview of the circulatory system, including plasma and proteins. Designed as lesson plans, this site can be helpful for middle schoolers as well.

[Free Registration/Login may be required to access all resource tools.] Covers the pathways of the pulmonary and systemic circulations.

Students learn about the vessels that supply the central nervous system with blood.

This course outline offers resources focused on the circulation of the atmosphere and ocean.

In this lesson, middle schoolers are required to work in teams to simulate the volume of blood moving through the circulatory system by transferring blliquid into-and through-a series of containers.

This video segment adapted from NASA's Goddard Space Flight Center explains how and where hurricanes develop. Learn how El Nino events alter the course of atmospheric circulation. Includes background reading material and discussion...

[Free Registration/Login may be required to access all resource tools.] The lymphatic system is a network of vessels and tissues that carry a clear fluid called lymph. The lymphatic system works with the cardiovascular system to return...

[Free Registration/Login may be required to access all resource tools.] In this online tutorial students will begin to identify pathways of the pulmonary and systemic circulations.

[Free Registration/Login may be required to access all resource tools.] Your cardiovascular system has many jobs. At times the cardiovascular system can work like a pump, a heating system, or even a postal carrier. To do these tasks,...

An animated video, with an accompanying quiz, explains how the circulatory system works.

What do you know about the different human body systems? This site features information on each of the different systems. Students and teachers will benefit from this comprehensive resource.

A great overview of the Cardiovascular System, its structure and functions. See diagrams of the heart, and learn how the blood flows through the heart.

A guide to the heart, lungs, and circulatory system, and surgical procedures of the heart. Includes many digital images. Lesson plans with pictures and video instructions are very helpful.

This StudyCards stack enables students to review the vocabulary and physiology of the circulatory system.

Help Atua learn how our blood works, and what our circulatory system has to do with this.

Take this ten-question review quiz over the circulatory systems of animals. Read more about each question after an incorrect answer is given.

Five multiple-choice quiz questions covering the human circulatory system. Students have the opportunity to check their answers after submitting their results.

The circulatory system and how it functions are explained. An interactive diagram shows how blood flows through the heart. Disorders of the heart and the circulatory system are also described.

The large scale horizontal flow of air in the atmosphere is driven by the imbalance of net radiation over the globe. This resource introduces us to the physical laws governing the horizontal motion of air. It also describes types of...

A course lecture on the external processes that shape the Earth, specifically the hydrologic system. This system is powered by the Sun's energy. The components of the Earth's energy budget are described, and how these drive the movement...

An investigation that is part of a series of lab lessons that expose students to Earth Systems through research, data, and visualizations. During this lab, students will focus on the pathways of wind and water to and from their location...

Check Steve's cardiovascular health before he starts filming his dangerous wildlife special. Following the activity, read more about the heart, and then take a quick quiz to check for understanding.