A short video/audio guide covering the basics of metals: properties and uses, the reactivity series, extraction methods (heating with carbon/electrolysis), precious metals.
Designed for test prep, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.
This and many other animations, along with complementary quizzes, are available in my "Core Science: Watch and Test" app on the iOS App Store:
https://itunes