Here is a great resource to help prepare your 5th grade student regarding the science EOG. The resource highlights the four major unifying themes (Force & Motion, Weather, Ecosystems, and Human Body Systems) that are studied in 5th grade and tested on the EOG. The resource includes links to StudyJams, which may have been viewed in class, but serve as a great resource for review - especially for concepts introduced earlier in the school year! Each StudyJams video or slideshow includes a "Test Yourself" feature which can also give students practice with answering multiple choice questions.
The parent information page is available in English: goo.gl/BfcLst