Why is Excretion Necessary for Life?

In cooperative groups, middle schoolers contemplate the probability of 18 different situations occurring. After they make predictions, they compare them to the actual risk factors. This eye-opening exercise demonstrates that the odds of...

It's every health and science teacher's favorite subject to cover: the reproductive system. This comprehensive lesson plan introduces adolescents to the reproductive anatomy of men and women with the help of a series of diagrams,...

The human body is an amazing thing! Explore the body with your high school class as they investigate each system in detail. They learn components of each organ system and disease processes that can negatively affect general health and...

More than 27 million Americans have some type of thyroid disease. In the 24th video in a series of 47, scholars see how the hypothalamus-pituitary-thyroid axis works in the human body. The narrator then explores what happens to the body...

Beginning with how different animals excrete waste, this short video moves on to the human excretory system from the kidneys, to capillaries, to the loop of Henle, to the excretion out of the body. 

If you line up all of the neurons in your body, they would stretch almost 600 miles! The seventh video in a series of 47 and explore the nervous system, both central and peripheral. The narrator teaches the organization and composition...

The average person's heart beats about three billion times during their lifetime. In this circulatory system video, learners briefly see the difference between an open and closed circulatory system. The rest of the video focuses on the...

The human body produces about 1.7 liters of saliva a day to aid in digestion. Here is a video that explores the digestive system, highlighting the difference between mechanical and chemical digestion. Scholars then see each organ of the...

Discover the importance of your skeleton. Its different purposes are described and the various types of bones are shown. The animation in this clip clearly introduces the human skeletal system and its parts. A great resource for your...

[Free Registration/Login may be required to access all resource tools.] Toxic waste must be disposed of properly or there can be serious consequences. It is the same with your body--your waste needs to be removed from you. And that is...