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Grade 5 Science
Body Systems
4. Circulatory System
Blood and Vessels, Structure and function
Blood and Vessels: Discover How Your Circulatory System Works
You will explore how blood, arteries, veins, and capillaries work together to deliver oxygen and nutrients to every cell in your body.
What You'll Learn
You will identify three blood vessel types and their unique jobs.
You will learn how plasma, red cells, and platelets function.
You will trace blood flow through the pulmonary and systemic circuits.
You will connect the circulatory system to other body systems studied.
What You'll Practice
1
You will identify blood components and match each to its function.
2
You will distinguish between arteries, veins, and capillaries clearly.
3
You will answer questions about heart chambers, valves, and blood pressure.
Why This Matters
Understanding how blood and vessels function helps you see how every system in your body depends on a continuous supply of oxygen and nutrients to stay alive.
This Unit Includes
Practice exercises
Learning resources
Skills
Blood Vessels
Circulatory System
Blood Components
Hemoglobin
Capillaries
