Electricity and magnetism are related effects that have many useful applications in everyday life. 

Links

Fossweb

Silicon Spies

Blobz Guide to Electric Circuits

Circuit World (advanced!)

All organisms need energy and matter to live and grow

Living organisms depend upon one another and on their environment for survival

The properties of rocks and minerals reflect the processes that formed them.

Waves, wind, water, and ice shape and reshape Earth's land surface.