How Your Body Works 2, Colon Health & GI Problems

An instructive slideshow presentation won't take the wind out of your sails! Alesson plan and the included presentation show how a sail works to push the sailboat downwind. It goes on to present how the sail and the keel work together in...

Your body makes many chemicals that allow the complex systems to operate, but did you know this includes formaldehyde, hydrochloric acid, hydrogen peroxide, and ammonia among others? Find out about 10 chemicals your body makes in a video...

Aaah, winter ... chapped lips, rough hands, and flaky, itchy skin! When you apply your favorite moisturizing lotion, what does it actually do? Science scholars examine the types and functions of moisturizers through a video from the...

Sal's series on the Law of Thermodynamics continues with this video on how heat and work are added to, or taken away from, a system. As a result of the heat and work energy, the system that is being worked on will transform into another...

Most realize that Ebola is deadly and highly contagious, but what exactly does it do to your body? The video offers a look at how Ebola spreads through your body systems. It includes how each part of the immune system responds.

Ever wonder why it takes awhile to feel full when you eat a meal or snack? Follow food in its fantastic, 40-hour journey through your body with a video about the digestive system! Young anatomists explore the process of digestion,...

Many people know the feeling of counting backward from 100 before a surgical procedure begins, but what actually happens between number 99 and waking up after surgery? Watch a short video about the different types of anesthesia, the...

If humans can live without one kidney, how important can they really be? Investigate the vital role these organs play in filtering our blood, removing waste, and managing our bodies' water supply with this short animated video.

Not all fat is bad—eating good fats actually helps with weight loss. Learn how the body uses fat through a 27-slide presentation that breaks down the path fat takes from entering to exiting the body. Understanding why fat is helpful and...

Nutritionist Radhia Gleis explains what metabolism is and how to assess it. Food is processed and used by the body producing waste in the end. The steps of the digestive system are explained from its beginning in the mouth to its end in...