The Human Heart: A Powerful Pump
A cross-section diagram labels the heart's chambers and valves. The reading explains blood flow and oxygen delivery. Questions ask students to trace a red blood cell's path and define terms like atrium and ventricle.
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This asset is part of Free Science Reading Worksheets That Actually Engage Students published by SheetForge. Licensed under CC BY 4.0 — Free for personal use. Free to use with attribution.