http://www.eduplace.com/kids/science.jsp (Science books with glossary, different grades, word games, crossword puzzles…)

BBC- Schools Science Clips

http://www.bbc.co.uk/schools/scienceclips/  ( In this page there are different Science units which  include experiments, quizzes and also teacher resources. From 1st cycle to 3rd cycle).

 ASTRONOMY

http://spaceplace.nasa.gov/en/kids/ (Games, projects, animations, cool subjects …)

http://www.kidsastronomy.com/ (Solar System, news, Astronomy Dictionary, teacher corner, free on-line classes …)

http://amazing-space.stsci.edu/eds/ (Teaching tools, Astronomy basics, …)