In this tutorial the concept of how electrical energy is transformed is introduced. Learn how electric charges actually work and take the interactive quiz to assess your understanding.

In this lesson students will learn about water treatment and what happens to water when it goes down a toilet and drains into sewers. Through further investigation students will understand the relationship between water treatment and...

"They're putting on witnesses who they know are lying. They concealed exonerating evidence. Don't we have enough criminal conduct by the prosecutors to put them behind bars?" "It doesn't work that way," the lawyer laughed. "The law is...

Artcyclopedia maintains an impressive list of links related to known medieval European manuscript illuminators, from the 13th century to the 16th. Page includes links to museum sites and archives where images of illumination can be...

Students learn various topics associated with the circle through studying a clock. Topics include reading analog time, understanding the concept of rotation (clockwise vs. counter-clockwise), and identifying right angles and straight...

Second graders worked on telling time to the hour and half hour earlier in the year. Now they will apply their understanding of counting by 5s to telling time to the five minute interval.