Build a Functioning Heart Pump

Materials Required:
Two plastic bottles
Drinking straws
Rubber bands or tape
Scissors
Red-colored water (to simulate blood)
Steps Involved:
Cut the tops off the plastic bottles and connect them with drinking straws to form two chambers, representing the heart’s atria and ventricles.
Seal the connections between the straws and bottles using rubber bands or tape to ensure there are no leaks.
Fill one bottle with red-colored water to simulate blood.
Pump the water between the bottles by squeezing and releasing the plastic bottles to mimic the heart’s pumping action.
Discuss how the heart’s pumping action moves blood through the chambers and out to the rest of the body.