Journeys: Heart. Stop 6

Listen to your heart

Experiment! Put your hand on the left side of your chest and feel your heart beating.

Is it slow or fast? Tap the picture to hear how it beats.

A calm heart beats slowly.

Fast? Sit quietly for a bit and listen again.

Now do twenty jumps and put your hand on your chest again. How is your heart now?

Slow? Jump a bit more and listen again.

Fast! Your heart is pounding.

When you jump, your muscles need more oxygen. So the heart beats faster and pumps more blood.