Ages 9–11🔬 Science9 verified questions on this shelf
Heart & Blood Circulation
Describe the circulatory system in detail: the heart has four chambers (two atria, two ventricles) that pump blood in a double loop — one to the lungs for oxygen and one to the rest of the body to deliver it — through arteries, veins, and…
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Question 1 of 3
A red blood cell leaves Maya's right hand after giving oxygen to the body, travels back to her heart, goes to the lungs to pick up fresh oxygen, and is then sent back out to the right hand again. Which list shows the exact order of the heart chambers the cell passes through from the moment it re‑enters the heart until it reaches the hand again?
Question 2 of 3
When blood leaves the left side of Sam's heart, travels to his arm to give oxygen to the cells, and then comes back to the heart, which order of vessel types does it follow?
Question 3 of 3
During a soccer game, Kai's blood leaves his left ventricle, travels through a large vessel to his right calf, passes through the tiniest vessels where oxygen is given to the calf muscles, and then returns to his heart. Which list correctly names the type of blood vessel for each part of this journey in the order it occurs?
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