SCIENCE

Front

What is the function of the heart?

Back

The heart pumps blood throughout the body.

Front

Is the heart a hard organ?

Back

No, the heart is a soft muscle.

Front

Do all living beings have a heart?

Back

Yes, all humans and many animals have a heart.

Front

What is circulation in the body?

Back

Circulation is the flow of blood, not food, in the body.

Front

Is it true that the heart is as big as our head?

Back

No, the heart is not as big as our head.

Front

What does blood carry in the body?

Back

Blood carries oxygen and nutrients to cells.

Front

What happens to blood after it delivers oxygen?

Back

It returns to the heart to get more oxygen.

Front

What are the two main parts of the circulatory system?

Back

The heart and blood vessels.

Front

What is the role of arteries?

Back

Arteries carry oxygen-rich blood away from the heart.

Front

What do veins do?

Back

Veins carry oxygen-poor blood back to the heart.