Science Movies
- 1960

Principles of Ionization
Principles of Ionization01960HD
Shows the properties of different solvents, including their electrical conductivity or lack of it. Shows how they affect the boiling point of water....
![Principles of Ionization]()
- 1970

How Levers Help Us
How Levers Help Us01970HD
This instructional film shows the three parts of a lever and demonstrates how various levers help to move things more easily, or move them farther...
![How Levers Help Us]()
- 1970

La pollution «cétacé»
La pollution «cétacé»01970HD
![La pollution «cétacé»]()



