Science: What is the aquatic food web like?

This is an interesting video that describes some problems with the aquatic food web that contains certain types of trout.

Subject:  Life Science
Grade Level:  7-12
Length:  2:34

Science: What is the digestive system and how does it work?

This scientific educational video visually explains the digestive system.  It does so by show how a piece of food goes throughout your body and ends up as waste.

Subject:  Biology
Grade Level:  6-12
Length:  1:49

Science: How big is our Earth compared to the sun and other stars?

You have probably all seen the images out there on Google that show how small the Earth is compared to different planets and suns.  This is a video that kind of takes you through that picture.  It is very well done.

Subject:  Astronomy
Grade Level:  k-12
Length:  3:00

Science: What are the planets in our solar system?

This is an interesting educational video created for the younger students.  It is an animation and song that describes the sun and the eight planets.  It does skip poor old Pluto, which I refuse to believe he no longer is a planet.   The song is slow and easy.

Grade Level:  1-3
Subject:  Astronomy
Length:  4:19

Science: What is a pulley and how does it work?

This educational video is done by Bill Nye the Science Guy.  This 6 minute segment does an excellent job discussing how pulleys work and why and where we use them.

Subject:  Physical Science
Grade Level:  2-8
Length:  6:08

Math: What is the denominator?

This is a cute and simple song that explains what the denominator in a fraction is.

Grade Level:  1-4
Subject:  Math...Fractions
Length:  2:47

Science: What is photosynthesis?

This video discusses the questions, "What is photosynthesis?"  It is done using rap which I am not a big fan of, but its descriptions of photosynthesis and the visuals it uses are really good.

Subject:  Life Science
Grade Level:  7-12
Length:  3:21