Learn how to make a breathing machine from the author of Maker Lab, Jack Challoner. This easy experiment uses household items to construct model lungs and show how some vital parts of the body work. -- Learn about the respiratory track hands on, at home!
Great Idea to teach kids how to brush, but also to teach them the name of each teeth and how many there are. Cardboard and plastic bottle bottoms Dentadura con material reciclado para enseñar el correcto cepillado y la higiene dental