Interactions over small and large distances

This video explains how energy can be described as being in different stores.

This video explains ionic bonding

This video explains covalent bonding.

This video explains how electromagnetism is due to the magnetic fields around electric currents.

Alisha Kakar explains the different properties of alloys and pure metals

Dr George Dransfield explains how to detect and then draw magnetic fields.

Dr George Dransfield explains the effect of forces on the extension of a spring.