Young scientists get to the heart of the matter with this comprehensive review of the circulatory system. Addressing the different anatomical structures and processes involved in pumping blood through the human body, this worksheet...

Students design and create their own heart valves out of a variety of materials. Their heart valves are one way valves designed for water flowing through a tube representing blood moving through the heart.

In this blood vessel worksheet, students compare microscope slides of arteries, veins, and capillaries. This worksheet has 43 fill in the blank questions.

In this kidneys instructional activity, students review the structure and function of the kidneys in the human body. This instructional activity has 18 fill in the blank statements.

In this biology learning exercise, students identify and locate various vocabulary terms related to the lymphatic and immunity systems of the body. There are 42 biology terms located in the word search.

What are blood vessels and what do they do? Find out here at this Franklin Institute site!