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....
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- 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]()


