Science: How small are atoms?

Bill Nye demonstrates how small atoms are in this educational film.  Your students will find it interesting to see that most of everything is actually empty space and that the nucleus of the atom and it electrons are really spread out.

Subject:  Physical Science
Grade Level:  4-8
Length:  6:37

History: What were some causes of World War I?

This is a two part video describing events in Europe that lead to the beginning of World War I.  It is an older video, but contains quite a bit of actual clips from the time period.

Subject:  World History
Grade Level:  6-12
Length:  8:42 and 7:49

Science: How do predators and prey interact and help form the food web?

This video would be a great one to use if you are going to introduce the food web and predator/prey relationships.  It has some great footage of animals chasing each other around.

Subject:  Life Science
Grade Level:  4-12
Length:  2:40

Science: What are the three types of rocks?

Tim and Moby do an excellent job in this educational animation, describing the three types of rocks, igneous, metamorphic and sedimentary rock.  The discuss a general description of the rock cycle as well.

Grade level:  2-7
Subject:  Earth Science
Length:  2:05