1. 
   light energy
   (Green plants as organisms) energy in the form of light (from the sun). It is needed for photosynthesis, which changes light energy into chemical energy.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   Light energy
   is the form of energy associated with visible light
   Found op http://www.epaw.co.uk/EPT/glossary.html
   
   

Tip: double click on a word to show its meaning.