« previous next »
« previous next »
 

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Zebras are several species of African equids (horse family) united by their distinctive black and wh Zebras are several species of African equids (horse family) united by their distinctive black and wh
Diversity in the United States Diversity in the United States
The United States, 1819 The United States, 1819
The Kingsley plantation, on Fort George Island in Jacksonville, Florida. Zephaniah Kingsley, the own The Kingsley plantation, on Fort George Island in Jacksonville, Florida. Zephaniah Kingsley, the own
Nasal cartilage and external structures. Nasal cartilage and external structures.
The Lorenz Curve for the United States, 2009 The Lorenz Curve for the United States, 2009
Video: Digestive System Animation

For a complete list of videos, visit our video library