Human heart cut open to show the four chambers - Human heart coloring worksheet

About this coloring page

A human heart cut open to show the four chambers lets you look inside: the two upper chambers, the two larger lower ones, the thick wall between them and the valves that keep blood flowing one way. Big blood vessels rise from the top. This human heart coloring worksheet has no labels, so it works well for a biology lesson. Students can color the right side blue and the left side red, then write the names of the chambers and the vessels next to the drawing. It is a clear and simple way to learn how the heart pumps blood.