English Cymraeg

Topic 1.1.1 – Energy concepts and use

Testun 1.1.1 – Cysyniadau egni a'r defnydd ohono


Topic 1.1.2 – Generating electricity

Testun 1.1.2 – Cynhyrchu trydan


Topic 1.1.3 – Building electrical circuits

Testun 1.1.3 – Adeiladu cylchedau trydanol