Scientifically proven

How many chambers does the heart have?

• One

• Two

• Three

• Four

• six

The thick, muscular walls of arteries help maintain blood pressure during circulation. Arteries have ___ walls.

What do arteries carry away from the heart?

• Oxygen-rich blood

• Carbon dioxide

• Nutrients

• Hormones

What is the main function of the heart?

• Filtering blood

• Digesting food

• Pumping blood

• Producing hormones

How does the specific path of blood flow through the heart contribute to the overall function of the circuy system?

Bananas are ______

• brown

• radioactive

• blue

• healthy

Light can be a wave or a ________

Everything is made of :

• Atoms

• materials

• cement

• wood