Use this lesson to see how animals can have very interesting relationships. Some help each other, some benefit from others, and some hurt others. Young scientists are sure to benefit from this eye-opening lesson.

Your students will love this lesson that teaches them about the life cycle of a chicken. It gives students the chance to visualize the steps that occur from a chick's birth to when it becomes a chicken!

Show your students the parts that work together to make a person breath! Have them compare the lungs of a healthy person, the lungs of a smoker, the lungs of a city resident, and the lungs of a miner.