« 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?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

What emotions are these people expressing? Are these emotions global? Is their way of expressing ... What emotions are these people expressing? Are these emotions global? Is their way of expressing ...
Holland’s six basic types of people based on vocational interests (attitudes, abilities, and ... Holland’s six basic types of people based on vocational interests (attitudes, abilities, and ...
While most people resist labels of deviance, some embrace them. In what different ways do these ... While most people resist labels of deviance, some embrace them. In what different ways do these ...
For millions of people, the United States represents a land of opportunity and freedom from ... For millions of people, the United States represents a land of opportunity and freedom from ...
Despite the globe’s vast social change, people all over the world continue to make race a ... Despite the globe’s vast social change, people all over the world continue to make race a ...
People using walkers typically have a high level of mobility impairment. People using walkers typically have a high level of mobility impairment.
Video: Four Giant Convection Cells oF Earth

For a complete list of videos, visit our video library