The Excretory System: From Your Heart to the Toilet

Is it possible we are missing a planet from the original solar system? Watch the scientific process of simulation to consider options for the origin of the solar system. An installment of a solar system playlist shows learners the...

Viewers follow the paths of oxygen and carbon dioxide through the human respiratory organs and the path of the molecules through the human circulatory system, in a short video about how the body delivers oxygen and picks up...

Learn about the lymphatic system and its role in maintaining homeostasis in the 44th video in a series of 47. The narrator shows learners the anatomy of the lymphatic system and its role in supporting the cardiovascular system. He then...

Get your class thinking with animations of neurons in action and explanations of how stimuli is transported and processed. This film makes an ideal introduction or review of the nervous system. The parts of the brain and what they...

Blood passes through the kidneys about 300 times a day. Show your class how the kidney and bladder work together to filter blood in the excretory system. This 19th video in the series explores how the circulatory and respiratory systems...

The human immune system doesn't always prevent us from getting sick, so what is it doing? Young scientists watch a short video explaining what the immune system is and how it works. Then, they answer eight questions to prepare for an...

Inhale, exhale, and rest easy when looking for a supportive tool for your activity on the respiratory system. Seven slides introduce the class to the function of the organs: lungs trachea, diaphragm, bronchial tubes, bronchioles, and...

Young scholars compare the digestive systems of the buffalo and of the zebra, diagram their systems, and compare their lengths. In this digestive system lesson plan, students learn about their diets as well.

After reading through this presentation about nerve impulses, students should be able to complete the sentences given with the correct terms and scientific vocabulary. The basics of the ion channel behavior are detailed along with a...

Flu vaccines work by calling on the immune system to produce antibodies against the virus without actually infecting the individual with the flu. Here class members see how a virus enters cells and the body defends itself. The...