Synopsis
George McGavin investigates the dramatic life of the oak tree, which wouldn't survive without its symbiotic relationship with a huge network of mycorrhizal fungi underground. The fungi transports nutrients from inaccessible places into the roots of the tree.
Further Information
Similar broadcast resources
The power of invisibility | Bitesize Science
Light moves at different speeds through different objects, this can make objects appear in a different place to where they actually are.
Internal reflection | Bitesize Science
An examination of how light can be internally reflected, and how this is used for carrying information in fibre optic cables.