Science Buddies
Paper Chromatography Experiments and Explanations
What food dyes are in your candy? Is black ink really black? What gives fall leaves their color? These are all questions that you can investigate using paper chromatography – a technique that can separate mixtures into their individual...
Visual Learning Systems
Using Electricity: Electric Charges
This program explores the many important uses of electricity. The nature of electricity and the formation of electric current are highlighted. Special attention is also paid to safety and electricity. Concepts and terminology include:...
Khan Academy
Khan Academy: Electricity and Magnetism: Magnetism 2
Video lecture explores magnetic fields and their effects on moving electrical charges. [8:59]
Khan Academy
Khan Academy: The Battery and Electromagnetism
The video lesson is from Khan Academy's physics library. The discovery of the battery, along with its connection to electromagnetism, are discussed.