How to Make a Working Heart Model

A working heart model teaches children how blood is transported throughout the body.
••• cocktail from heart. image by Andrey Khritin from

The human body functions as a result of the heart muscle pumping blood throughout the organs, tissues, muscles and skin. As children learn about the body's cardiovascular system, they will be able to understand how the heart muscle works much easier if they can see a working model of a heart in action. You can make a heart model out of simple, everyday materials that can be found around the house.

    Fill a hot water bottle three-quarters full of water.

    Squeeze 10 drops of red food coloring into the bottle.

    Insert a clear plastic tube into the opening of the hot water bottle.

    Tape the tube onto the hot water bottle with duct tape.

    Squeeze the hot water bottle. The squeezing action acts as the pumping action of a human heart, and will force red water through the clear tube as blood is pumped through the veins and capillaries in the body.

    Things You'll Need

    • Hot water bottle
    • Water
    • Duct tape
    • Clear tube
    • Red food coloring

Related Articles

Characteristics of Aquatic Plants
Test Your Knowledge on Middle School Science
How to Calculate Volume of a Circular Cylinder
How to Make a Model of a Human Ball Socket Joint
How to Experiment with Coffee Filters to Explain How...
Jet Propulsion Science Projects
About Minor & Major Landforms
How to Make a 3D Model of the Muscular System for a...
How to Calculate a Circular Area
How to Calculate the Volume of a Cylinder
Chemoreceptors & Heart Rate
How to Mix Vinegar & Baking Soda in a Bottle Rocket
What Are the Two Major Components of an Atom?
How to Float an Egg in Water
Water Bottle Science Experiments
How to Calculate CFM to MPH
How to Make a Submarine Project Science Experiment
Facts on Convection Currents
How to Remagnetize a Compass Needle
How Does the Body Regulate Heart Rate?