Saturday Science: Veins

Here is a super simple model that you can make with your children to demonstrate how our veins carry blood throughout our bodies.
For this you’ll need a box, some cardboard, a marble, and some tape.

First cut the cardboard into two strips. The first strip should reach about half way across the box, the second strip should slightly overlap the first strip. Tape the first strip so that it is stationary within the box.
Tape the second strip so that it swings on a hinge.
Now place the marble inside of the box and tilt the box so that the marble pushes open the second flap.
Then tilt the box back so that the marble presses the second flap down to the first flap and the marble cannot pass through again.
Now picture that the marble is our blood. This is how the valves in our veins allow blood to flow one way only and carry the blood throughout our bodies.

Be sure to see what my Saturday Science co-hosts are up to this week!
Frog Life Cycle Science Table from Stir the Wonder
My 5 Senses Discovery Table from Little Bins For Little Hands

Check out our science Pinterest board for more fun ideas!
Follow Science Experiments for Kids on Pinterest.

Link up your science posts below!

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3 Comments to Saturday Science: Veins

  1. ChristyM says:

    To kids are starting to be interested in how their bodies work. I need to do some demos like this with them.

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